Last time, Overseer Otto of Schicksal captured Kiana Kaslana, a St. Freya High School Valkyrie. Principal Theresa allied with Schicksal's enemy, Anti-Entropy, to protect her friend's daughter. All the while, Celestial Being has begun their shadow assistance on the alliance. They are prepared to force their way into Schicksal HQ to save Kiana from being held prisoner there.

The allies decided to split their forces into two groups and take advantage of Schicksal's fight with a Judgment-class Honkai beast to attack from their flank and take over Schicksal HQ's Air Terminal 3. The Gundam Meisters will begin evacuating all students who aren't qualified yet to be Valkyries but also push back the Schicksal forces to pave the way for Y/n's path toward the center of the battle.

Einstein: Madam Theresa, the mech squad has surrounded the airport. We may attack at any time.

Theresa: Just on time. We're done with preparations as well. All squads to battle stations, and direct all firepower to take over Air Terminal 3!

Just then, all weaponry at Helios was aimed down at Air Terminal 3, and then suddenly, a pink beam fired at the deflector shields, melting through the door and giving them an entrance. They looked to their right and found a cloaked Ptolemaios parked beside them, waiting for their attack and providing assistance. The Gundam Meisters are now ready to go and provide support for St. Freya as they are suited up and looked towards the entrance and Y/n gives the command along with Theresa.

Theresa: Looks like the odds are in our favor now.

Y/n: All units, commencing rescue mission!!

(True season 1 Final Opening song Play: Ash Like Snow)

https://youtu.be/GDT_6zd_lvo

Mei, Himeko, and Theresa have now begun to enter the massive school complex as they saw the battlegrounds, filled with Valkyries fending off Honkai Beasts and some students who aren't yet qualified to be Valkyries are following evacuation protocols.

Einstein: Ground forces! Take the Port Hub and help Dr. Tesla hack into the control system to neutralize Terminal defenses. My mechs will provide fire support.

Tesla: You best be quick, mophead! Those Gundams have already gone ahead of us!

As the Gundams were running through the burning entrance way they were then blocked by Honkai Beasts. Sakura simply uses her GN Battle Blades as she swiftly takes them all out as she dashes through them leaving behind multiple cuts and slashes as they die and disintegrate.

Kyrios meanwhile began aiming her GN Submachine Guns towards incoming Valkyries behind them. The Valkyries viewed them as enemies according to their Overseer.

Valkyries: It's time for you fiends to taste the might of Immortal Blades!

Rin: *sigh*

She just fired her GN Submachine gun nonchalantly as each aim was true and all Valkyries were immediately knocked out of their formation and began separating their formation. The leader tried her best to attack its head but when she struck her blade to its neck, only ended up hearing the sound of a metal shatter and broke. She was shocked to see her favorite sword destroyed and she ended up getting caught in Kyrios' claws and smashed up on a wall forcefully, knocking her immediately.

Rin: His minions of Valkyries in his circle are rather... underwhelming.

Kallen: Don't worry, the major leaders are a challenge than these minor leaders here.

Meanwhile, Himeko blasted through the enemies with her Nexus sword, both Schicksal Valkyries and Honkai Beasts alike. She stumbled upon a tactical beacon pulsing communication waves.

Himeko: What is this? This core is calling for reinforcements!

She then decided to plant a C4 on it and detonate it. At another location in the school, Mei continued killing Honkai Beasts along the way. She uses her skill attacks to decimate them all and perform perfect parry against enemies with devastating but slow-moving attacks.

Meanwhile, Theresa is chaining up all Valkyries and forcing them to yield but if they cannot then they are graced by her blunt end of the spear to their vital points. Theresa then contacts Himeko as she notices the control tower has some high heat over there.

Theresa: Some hostile reactions have been detected in the control tower, be careful!

Himeko: Got it.

Himeko kept sprinting through the Schicksal grounds but suddenly, she saw a giant silhouette coming at her. She backed away from it before it shook the ground a little. She saw a massive humanoid mech with weapons like swords, maces, and hammers.

Tesla: What the heck is this thing!?

Einstein: Is this a tactical mech? No. It's not the same as the Titans.

Himeko: And I thought Anti-Entropy had patented these humanoid mechs!

Einstein: A patent might not be a bad idea. Once we're through here, I'll give it some thought. But for now, we need to focus on the enemies at hand.

Himeko was about to attack when somebody landed beside her and it was a Gundam, the Gundam Astray Blue. She already knows this is Eula as she tries to talk to her and ask what are they doing here but Eula talks first and fast.

Eula: Sensei, let's make a bet, whoever gets the least kill, has to buy the winner 2 bottles of beer.

Himeko: Hmph, being so full while in battle, huh? Never see that in you, but again, you are taught by the very best!!

Himeko and Eula battled against the incoming mechs of Schicksal. She froze the floor along with the mech's footing for Himeko to use her Nexus sword to slice the legs up as they tumbled down to the slippery floor. She then continued the onslaught on incoming Schicksal mechs.

Eula uses this opportunity to skate along the icy floor and uses it to tear apart the mechs using her GN Pistols and her GN Luster Sword. She first spins and fires her pistols as the shots hit their bodies before stomping on the ground as she activates her GN Devise backpack and wields the Luster Sword in her hand and the sub-arms wielding two Beam Sabers as she flies and twirls like a ballet dancer and slices the mechs up.

Himeko Hmph, these cretins just keep coming...!

But then the mechs and all Valkyries were under heavy fire from out of nowhere, a massive shadow loomed over the school. Himeko smiles as she looks up and contacts the XO on the giant ship.

Himeko: Hah! You've finally arrived... Hyperion!

Eula: XO, you sassy gal...! Looks like we'll hold that bet for now. I've got my squad needing backup. *leaves Himeko*

The new and improved Hyperion ship with upgrades such as the SELENE System, and its Solar Reactors are powering it up. It is the same size as Ptolemaios 3, but its length is much longer than Ptolemy's. It has large and small GN Cannons, missile launchers, and GN Vulcans, as well as a hangar bay for Ptolemy or the Gundams that can park on the upper deck, including a GN Field system.

XO: We just made it in time... The girls are safe and sound from the purge of St. Freya...

Theresa: Otto, you've gone too far...! Himeko, get to the control tower, hurry!

Himeko managed to reach the control tower after toppling down all enemies and contacting other units in their communication line.

Himeko: Ground team reporting in, we've entered the control tower. This looks like the control room. I'll leave this to you, Tesla... oh?

Tesla: Hmph, obsolete models. I'll get through them in 5... no, 2 minutes!

Himeko: Hurry up. Those things outside are less patient than me.

Tesla: Find a way to hold them off for me! Toss that butterknife. You need bigger toys to kill these bugs.

Tesla tampers into their system switches something to her red mechs, and tells Himeko to get in the mech she switched.

Tesla: The control system has been switched to support mode. How about we go stir up some trouble now!! Try out my new mech!

Himeko entered as she saw the controls and weaponry. She smiled knowing this would be good enough to back all hostiles off of them. She then rained down the hellfire of missiles, bullets, and cannon blasts on all Schicksal mechs.

Himeko: Has it not been 2 minutes yet?!

Tesla: It's 1 minute and 56 seconds. Got it. The defense system is down. Air Terminal defense systems are completely disabled. Hmph, too easy.

Himeko suddenly coughed as she covered her mouth and she looked at her hand and saw her blood spat out. She was worried knowing her time was slowly running out.

Himeko: Damn, not now... Am I running out of time?

She suddenly sees Theresa and Mei coming towards them and Himeko drops out of the mech to inform Theresa of the situation.

Himeko: Defense system deactivated. We're safe! But we have no idea where Kiana is.

Theresa: Give the 2 professors some time. They'll hack into the system and look for clues.

Theresa: See what they've found so far. Talk to Mei and see how Bronya is doing.

Himeko then walks up to Mei who seems to be worried and hesitant while she checks the condition of her Katana.

Himeko: Mei, how's Bronya doing?

Mei: The surgery was a success. She's coming around. But Bronya's body is still weak. She's not in a state to fight. She's resting in the medical bay.

Himeko: Good.

Mei: Major Himeko, before the battle starts, I have a favor to ask of you... Please remove the bomb placed next to my heart.

Himeko knowing why she asked her of this and seeing no other options, gives her a nod of approval.

Himeko: Understood, I will let Theresa know.

Himeko then walks up to Theresa where she walks up to Tesla and asks her of her findings to where Kiana could be.

Theresa: Tesla, how are things coming along?

Tesla: I've found the clue you were looking for. A few hours ago, a ship flew into Schicksal HQ's Helheim Labs. Those labs are creepy. Do you know what Otto would do to her?

Theresa: We're running out of time.

Himeko: The Helheim Labs aren't too far from here. We should bust in.

Theresa: It won't be that easy. The Helheim Labs have a massive defense barrier. Our firepower may not penetrate it quickly enough.

Himeko: We're running out of time.

Theresa: We must come up with another solution: switching off that massive Honkai power core to deactivate the shield.

Himeko: Sounds like a plan. I'll do that. You stay put.: Once the power core is shut down, pilot the Hyperion through the breach.

Theresa: But what about you? Enemy reinforcements will show up quickly. You'll be surrounded.

Himeko: Don't worry. I was a member of the Valkyrie Assault Squad. I specialize in break-ins.

Theresa: But...

Theresa is concerned about Himeko's physical condition knowing she's slowly going to a death's door. But Himeko insists on volunteering to bust through this.

Himeko: Trust me, Theresa.

Theresa: ...Understood. Good luck, Himeko.

Tesla: Wait. I went over the number of operable mechs. I can divert some to support you. I'll join you as well. Someone has to lead the mechs.

Himeko: Leave them all on the Hyperion. They'll need more firepower than us.

Tesla: *sigh* I don't think you'll complete this suicidal trip.

Himeko: Hah. I have no idea what you're talking about.

Fu Hua, on the other hand, has joined the battlefield after her work against Benares which she fought off easily with her suit's limiter off. She then proceeds to contact someone.

Fu Hua: Overseer Otto, I've arrived at HQ. Awaiting further orders.

She tried contacting her boss but there was no response at all. He doesn't want to be disturbed and he intentionally doesn't want to respond to them at all.

Fu Hua: ...No response. What's going on?

Rita: Master Fu Hua? Rita here. The Overseer has entered the lab and has ordered me to welcome you. I've sent you a location signal. Rendezvous with me there.

Fu Hua: 'Rita? Why did Otto send her here?'

Fu Hua didn't know of it because he was not himself and only focused on trying to revive Kallen through Kiana, nothing else. Fu Hua can see the destruction of what had turned out to be. Gundams fighting both Honkai Beasts and Valkyries.

Fu Hua: This place is crawling with Honkai beasts. 'Kiana, did you summon them? The Gundams are now proving they aren't on Otto's side at all. Then why are they even siding with Principal Theresa? I can't mind that for now; according to the signal, the location is just up ahead.'

Rita on the other hand is crushing an Honkai beast with her new mechanical arm after her other arm got shot by the powerful beam magnum. She slays the rest of the Honkai beasts clearing the area.

Rita: Ah, how annoying. Time to clean this place up. After all, Master Durandal likes it clean.

Fu Hua: ...Rita.

Rita then saw Fu Hua walking behind her as she just bowed to her arrival.

Rita: Welcome back, Master Fu Hua. Good work taking care of that Judgment-class Honkai beast. Would you like a cup of tea?

Valkyrie Squad [Immortal Blades]

Lieutenant Rita Rossweisse

Fu Hua can't tell if she's still okay after what happened in the St. Freya archives. Who wouldn't be feeling humiliated after a single shot from a powerful gun that blew off her arm would be angry, wanting payback for what the Gundam did to her? But she didn't say it and just asked about where her captain was.

Fu Hua: Why are you the only one here? Where's your Captain Durandal?

Rita: Master Durandal has led a squad of Valkyries to purge the Honkai beasts attacking the HQ.

Fu Hua: I'm surprised she didn't bring you along.

Rita: I do care about Master Durandal's well-being, but this is different. The Overseer ordered me to welcome you and assist you in your mission.

Fu Hua: That won't be necessary.

Rita: It's my job, Master Fu Hua. Please understand.

Fu Hua didn't need to say anything anymore as she asked about the mission.

Fu Hua: ...Alright. What's the mission?

Rita: Master Theresa and her Anti-Entropy allies have occupied Air Terminal 3. The Overseer wants us to calm her down a little.

Fu Hua: Understood. But on one condition. No killing.

Rita: No worries. The Overseer wants Master Theresa and her girls safe as well.

Fu Hua: Let's go, then.

Rita: Fighting alongside you is an honor, Master Fu Hua.

Fu Hua turns and leaves, unaware of how unhinged Rita has become after her humiliation against the Gundam.

Rita: We can't hurt them? Well, it's dangerous to be emotional on the battlefield, Master Fu Hua. But I'm an exception, the Gundams' lives will be mine and I'll make them bow down for what they did to me.

She then follows Fu Hua, not even aware that at the top of the tallest building in Schicksal is a girl in a dark tattered cloak with a hoodie covering her head and a mask to cover her face, watching the fiasco between the two. She then contacted somebody on her communication line as the cloak showed a Celestial Being sign.

???: Rita and Fu Hua are intervening to where Himeko and Tesla are. Setsuna, send out your Gundams to the location and some towards the Honkai cores that power the labs to where they are awakening the Void. I've created a shortcut route towards the cores.

Y/n: Understood. Keep us posted, Lotus.

The codenamed Lotus then backs off from the view of Schicksal and hides from everyone's sight with her cloak having an optical camouflage system active. 

Himeko and Tesla are rushing to the Helheim labs to try and bust through the gate and find Kiana.

Himeko: Entering the firing range of Schicksal's defenses. Any battle plan, Dr. Tesla?

Tesla: Battle plan? Yeah, we should call Otto and ask him to shut down all the Honkai power-cores. Then lay down the red carpet and prep the champagne while we waltz into the lab. What do you think?

Himeko detects her sarcasm as Tesla just huffs herself proudly at what her plan is.

Tesla: My plan is simple. If it moves, smash it.

Himeko: I like that plan.

Tesla: Lead the way!

Himeko now leads Tesla toward the dark place of Helheim Lab. On the other hand, Y/n knocks out the three Valkyries trying to capture him and stabs the power core of a Schicksal mech, laying waste to it.

Y/n: Strike, R4, you head towards the and detonate it to further slow the awakening. Kyrios and Astray will head towards where Himeko and Tesla are. I have some other plans to do somewhere in this place.

The Meisters nodded as they moved out to their next assignment from Y/n in this battle. Himeko was then frustrated, having a hard time finding where the power cores were.

Himeko: This place is further than I thought. How are things over there?

Tesla: Doing better than people with no sense of direction. I hacked into the system and located the Honkai power core.

Himeko: You talk like a pain in the butt.

Tesla: I talk like a pain for idiots. You took up this super dangerous mission because you're out of time. You want to sacrifice yourself for your friends. People like you think like idiots. I can see right through you. Don't compare yourself to the Celestial guys.

Himeko: You came here to tell me that?

Tesla: Hmph. I'm not trying to be nice here. There was another idiot dumber than you are. People like you piss me off.

Himeko: Fine. Thank you anyway, Tesla.

When she found one of the cores, she provided an idea for Tesla.

Himeko: Wait, it seems like we could make use of this core.

Tesla: Hey! That's just what I was thinking. It's connected to the mainframe. We can use it to hack into the Honkai power-core control system.

Himeko: Hang on! Enemy reinforcements have arrived.

Himeko proceeded to attack the approaching waves of Schicksal mechs as Tesla began hacking into the power core.

Tesla: Could you buy me some time here? I have a big surprise for my old Schicksal colleagues.

Himeko: I feel like all I'm doing today is buying you time, Dr. Tesla!

She proceeded to ground pound the mechs causing an electric shockwave to the surroundings and started to throw the Nexus sword so hard that it spins around them, protecting them from the Schicksal mechs. She finally slays the last mech after the power core has been shut down by Tesla.

Tesla: Hah, got it! The Honkai power-core is down.

Himeko: Every obstacle has been taken care of. Time to withdraw.

Tesla: Hah. Schicksal is pathetic. Calling these wrecks mechas is an insult to my mighty Titans.

But suddenly Rita's voice came from above Tesla's mech making the two look towards where she was. She was standing on top of the shoulder of Tesla's mech, eyeing the mech with such sinister look behind her gentle maid attitude face.

Rita: Oh my, is this Anti-Entropy's new mech unit? Cleaning up this one might be slightly... more difficult, I presume.

Rita proceeds to cut it apart and it explodes behind her as Tesla pulls back Tesla behind her, arming her Nexus sword.

Himeko: Careful, Tesla!

Fu Hua: This is where it ends, Major. Lay down your weapons! I will not help you! You made a mistake. Kiana-

Himeko: She's not the real Kiana. Theresa and I already knew about that.

Fu Hua: Her powers are unstable. She could rampage at any moment and threaten the whole of humanity.

Himeko: Strong words. You're trying to kill an innocent girl, you know that? Is this the type of justice that you stand for, Fu Hua?

Fu Hua: Sacrifices are inevitable in the war against the Honkai. You know that better than I, Major. Showing mercy to the wrong people can be disastrous.

Himeko: You have no idea what "sacrifices are inevitable" even means. The tragedy is not how many people have died... But how we've grown accustomed to the idea that people must die for others to live.

But suddenly the place shakes as the ceiling above them suddenly plowed open with somebody landing between them, intervening in their talk. When they look at the smoke, Himeko and Tesla's view can see the green GN Particles coming out while Rita and Fu Hua's can see the cold glare as the figures look at them with death.

The smoke slowly fades away showing their full figure, the Gundams Kyrios and Astray. Rita's emotions slowly start to build up when she sees the Gundams in front of her. It reminded her of how Jona blasted her arm off. Fu Hua can see Rita's mechanical arm clinking from the rage she's feeling.

Astray: I heard all that talk about "sacrifices are inevitable" on this battlefield, and honestly, we're pretty pissed at you. It makes me so pissed that I have to decide which of the two of you should I deal with first. Maybe I should start with you-

Astray didn't waste time as she immediately dashed in front of her with her Luster Sword coated in ice. Fu Hua crossed her arms to block it but when she blocked it her arms became frozen and the battlesuit lost its orange color and returned to its purple color. Fu Hua was then kicked in the gut as Eula followed her immediately.

Rita: Master Fu Hua! *gasp*

Kyrios: Eyes on me, maiden rip-off!

Rita proceeds to block its attacks with her scythe as she tries to get her an opening but all its moves are reckless yet have a fast recovery. She tries to attack the back and hook up the body to stop its movements but it suddenly transforms into its Mobile Armor mode and rams her piercing her stomach and possibly breaking her rib when she collides with the wall.

It suddenly transformed into its mobile suit as it used the claw and proceeded to slam her to the floor multiple times. Rita then decided to use the mechanical arm to pull herself out and kicked Kyrios' head. She was stunned for a moment and suddenly Rita came prowling at her like a feral animal.

She proceeds to use her mechanical arm to punch the Gundam's face multiple times. But her punches don't do any damage to the Gundam's armor due to how its technology is much more advanced than this world can be. Kyrios knocked her back and she backed away as she suddenly caught the flying Astray which had a burning mark of a fist on its chest.

Kyrios: You okay?

Astray: *cough* I'm okay. Where's Fu Hua?

But then they suddenly saw Fu Hua holding the unconscious Himeko and Tesla hostage with her hand formed in a stabbing stance. Kyrios fires her GN Submachine gun but Rita manages to deflect some of the blasts protecting her.

Kyrios: Tch. *calls Y/n* We're in a pickle, here Fu Hua and Rita have held Himeko and Tesla as hostage. Your predictions were also right about Rita being a feral animal now.

Y/n: Damn... Nothing we can do about them after what those girls' loyalty has become... I already did what I needed to do while you fought them. Also, get out of there right now, they're ready.

Astray: Are you sure?

Y/n: Yes. Believe in them... they'll be able to get out of there...

Astray: Fine, we'll leave.

As Astray and Kyrios sheathed their weapons back to their holsters, Eula flew first out of the lab before Kyrios after she left an ominous message.

Kyrios: Your boss has ruled the world and he lets himself be ruled. How far are you all girls' loyalty to a man who has no care for everyone would willing to go? He has committed actions that cannot be forgiven by us.

Kyrios left that message to her and flies away by transforming into her mobile armor mode. As she left, Fu Hua dropped the body down as Rita looked at the two with cold eyes and held the scythe above their heads.

Rita: Allow me to deal with the coup de grâce.

Fu Hua: *aims her hand at her neck* I've said it before... If you don't wish to become my enemy, then do not hurt them.

Rita understands Fu Hua's loyalty to them she just stops what she is doing and just follows her condition.

Rita: Understood, Master Fu Hua. Then we'll bring them back to the Church... As prisoners. 'How foolish, Master Fu Hua...'

As they carried the bodies, a massive explosion went off and they were suddenly crushed by debris from the ceiling. Outside, the Helheim Labs' power plant explodes and the whole Lab goes dark and has no power.

Theresa: Hyperion is ready to go. We will engage once Himeko gives the signal.

Meanwhile, Theresa is forming her squad in the Hyperion as the whole staff gets busy with the students who are saved from the purge of St. Freya helping them out. Some are even being tutored by the seniors in the tasks given to them. Theresa looks at the whole staff being busy and she suddenly gets to Mei and tells her something.

Theresa: Mei, there's something I need to tell you. Your heart bomb has been disabled. But this might cause the 3rd Herrscher to awaken. Don't push yourself too hard. You can't fully harness that power yet.

Mei: Thank you, Principal.

Theresa: Just call me Theresa. I've betrayed Schicksal. I'm no longer the Principal of St. Freya. I'm sorry I got you involved in all of this.

Mei: Don't say that. We left Schicksal together. You're still our beloved Principal. You admitted me into St. Freya 2 years ago despite me being a confirmed Herrscher host. You are the reason why I'm standing here as a Valkyrie.

Theresa: Two years already? Time passed so quickly!

Mei: I used to be afraid that the Herrscher might hurt more people... But I do not intend to hide any longer. I will use this power to protect the people I love.

Mei gripped her sword and her chest as she looked at Theresa with determination.

Theresa: Mei...

Einstein: Sorry to interrupt. The barrier is changing, but we've lost contact with Tesla's team after that explosion.

Theresa: ...Understood. Battle stations, Mei! We're doing this.

Operator: Sensors picked up a large number of Honkai energy readings around the Hyperion!

Suddenly the Hyperion's alarms went off and Honkai Beasts emerged and spawned on Hyperion.

Operator: Honkai beasts have started converging on our location through the breach in the barrier!

Theresa: What? Why do bad things keep happening at moments like these?

Mei: I'll go take care of them!

But suddenly the whole ship shakes as an explosion happened in the ship. She holds on to a rail as she descends from the elevator. She can hear her earpiece telling the Operator to her of what's happening.

Operator: The lower levels have been hit. Fires have been detected spreading through the cabins!

Mei: Oh no, Bronya's still there!

The elevator then arrived at the lower levels and got outside to see multiple Honkai Beasts slowly getting closer to the source of the fire.

Mei: 'Enemies are entering the cabins! There's no time to wait for support...' Evacuate our people from the lower decks. I will hold the Honkai beasts off!

Mei began engaging the Beasts with her sword as she sprinted into one of the enemies and jump over it by using its body as a pedestal and travels a path towards the main leader of the enemy squadron. She clashed swords against the Honkai beast but it's defense and offense is both balanced and versatile making her attacks look like was nothing but a scratch to it's body.

Mei: I must... rely on my strength...

She then counters its attack but didn't see another attack coming as she was instead knocked back. She can feel herself getting tired as her vision is not clear as her thoughts start to run in her head.

Mei: Ugh... I feel so drowsy... 'But why is it that all I can think of is you...'

Flashback

Mei: 'I like how you, at the end of every mission... kick down the dorm's doors and shout, "Mei, I'm home!" and then leap beside me and yell into my ear about how hungry you are... I would always rub your hair and tell you, "Welcome back!" I like all this about you.'

Flashback end

Mei then began to kill all of the Honkai Beast surrounding her by using her Herrscher's style of fighting by using lightning attacks creating a electrocuting damage against the Honkai beasts. As she kept fighting them, her thought and will about Kiana is forming in her head.

Mei: 'You are not some Kaslana heroine, and you are not some clone of the 2nd Herrscher. To me, you are gentle and kind... and an idiot that I would never let go of.'

She then proceeds to finish off the leader of the squadron by plunging her sword into it's core as it roared and dismantled before disintegrating into ashes.

Mei: I will save you, Kiana.

The operators can see their staff evacuating the lower deck and everyone in the lower deck has been cleared out based from it's navigation map.

Operator: Lower decks evacuated! Careful! More Honkai beasts are now approaching!

Mei: Is there no end to them?!

HoT: How tragic. You'll never hope to beat them. You got strong words, but words mean nothing in this fight. So I'll lend you some of my strength.

Mei's body suddenly glowed pink as she can feel the power of her Herrscher persona flowing through her body.

Mei: This... Herrscher powers...

HoT: There's a score I need to settle. 'I won't let her die here. Never expected the day would come when our interests align. Y/n... You knew about this didn't you? You and your group aren't the only one who knows your departure is near...'

She then uses her power to wreak havoc against all Honkai that's incoming aboard the ship. Her attack's area of effect causes for all Honkai beasts meet it's electric blade and power as they were all easily dispatched.

Operator: All Honkai energy readings have disappeared!

Theresa: We're about to pass through the barrier, Mei. Get back to the bridge!

Otto meanwhile is standing tall in front of the stable test chamber which it's still powered on despite the lab exploded. So he decides to proceed with his experiments a bit more interesting and rushed at the same time.

Otto: Hmm, Theresa and her precious friends have arrived. Then... It's time to take my experiment to the next phase and a bit more interesting that not even you could stop the revolution, Herrscher of Infinity!

As the cords have appeared in the test chamber and proceeded to inject Kiana's body with glittering colors of particles into her and the skin began to show it's veins colored by it's particles. It's eyes suddenly opened as the whole place exploded and they were all knocked back from what they did.

Otto manages to get up and saw the girl rise up and lift it's hand above her as a massive black hole appeared cutting the whole ceiling apart and disintegrate as she was sucked up in the black hole.

Otto: Hehehe... HAHAHAHAHAHAHA!!!!!

Y/n and the whole Celestial Being noticed the forcefield disabled and the Meisters have heard Ptolemy's call.

Ryu: The forcefield was disabled, did you guys do something from the explosion?

Kallen: No, that wasn't part of the plan.

Sakura: What's going on?

Yuna: Heads up, I'm detecting a massive Honkai reading near you all! It's off the charts, am I getting this right?!

Y/n: I know. The bastard really done it! All Meisters return to Ptolemy and Hyperion, protect it no matter what! I'll go in the center of the school to take care of it!

He then saw the Gundams leave the battlefield with GN Particles trailing behind them. He then proceeds to run towards where the center of Schicksal would be. But they're not the only ones who noticed this as from Hyperion's view, the forcefield were disabled too.

Mei: The defense barrier is completely disabled. The Hyperion is almost over the laboratory.

Theresa: Something's not right... Why did their defenses suddenly become so weak? It feels as though they did it on purpose.

But suddenly the whole ship went shaking as they looked at Ptolemy which it has it's GN Field active and doesn't stumble or anything at all.

Theresa: What's happening?!

Mei: Strong dimensional fluctuations detected in the immediate vicinity... AH!

Suddenly she was slowly being pulled by a black hole behind her as Theresa tries to reach out to her.

Mei: Ah!

Theresa: Mei!!

But Mei was suddenly devoured by the hole and dropped to Schicksal's center plaza. Somebody caught her and she looked up to see someone.

Kiana: Mei...

Mei: Kiana?! ...Are you okay?

Kiana: I'm... good, I've never been better... I feel as though... I've been given a second life!

Mei: Kiana?!

Suddenly the true persona inside her reveal and her clothing has changed drastically with her eyes glowing orange and has a star-shape iris. This was Sirin, the Herrscher of Void.

Kiana: I'm so happy to see you beside me when I wake up. Now is the time for us to become one, my other half!

Kiana raised her hand in a claw stance and about to grab Mei's gem. But suddenly she pushed back by something and saw her Herrscher side blocked the HoVs attack.

HoT: We're too late! The Honkai has possessed her! She's extremely dangerous now!

Mei: She is extremely dangerous, but that is the reason why I'm not letting her go.

HoT looked at her in surprise about her resolve but then smirked as she knocks HoV back and returned to Mei's body.

HoT: Hmph... Fine. If we're going to fight a Herrscher, you'll need Herrscher-grade powers to win this fight.

HoT then lends her more of her power as Mei can feel it with her eyes glowing purple and emitting lightning inside her irises along with her vein's glowing glittery purple.

3rd Herrscher: Don't let me down.

Mei: Kiana... I will never leave you behind... Because I know you'll never give up on me either!

She then fights HoV with her sword and her Herrscher powers. HoV saw this and easily blocks her attacks with her Subspace-Lances. Everytime Mei tries to fight her she simply dodges it due to her hovering ability. But Mei simply doens't give up as everytime she was being knocked back and being attacked by her lances, she blocks or even breaks them all by finding it's weakspots. HoV devours them both into a illusion realm as HoT saw this and they tried to find HoV.

HoT: Is she gone? Or did her powers go rampant?

Mei: ...Kiana?

But suddenly illusions of Kiana appeared as she fends them off, each illusion has variations of Kiana's past to present. HoV is using this to try and break Mei, but she only saw Mei defeating them all easily. So she plays dirty and sneaks attack behind her back by conjuring a portal black hole and fires her Subspace Lances behind her back.

Mei flinches from this and was knocked back and suddenly she was knocked back once more on the floor by a shockwave she emitted. But before she could even retaliate, she was being chokehold by her.

Mei: Ki... Kian... na...

She can see the cold glare from HoV as she tries to reach out to Kiana deep inside her by touching her face.

Mei: Wake... Wake up...

Kiana saw this as she was in shock as she gripped her head in pain and screamed from what's happening to her. Mei can see what's going on as she tries to touch her but she saw her face, gritting her teeth in pain as she tries to get a word out.

Kiana: Mei-senpai...!

Mei: Kiana!

Kiana: Find Celestial Being...! They know... my mother is alive- GAAAAAAAAAGH!!!!!

Kiana's Honkai energy is leaking all around the place as the pain goes back. The pain was so great her head is felt like being crushed by her Herrscher persona. Mei tries to call her back by reaching out when all of a sudden Sirin's laugh came. Mei hesitates as the cubes began to merge and form an eye that opened and created a black hole.

Mei: What... what's happening?

Honkai beasts started to come out from the portal and drop in. The beast started to attack Mei and she was immediately knocked back from the impact when she tried to dodge it.

Mei: Ahh!!

All Mei can see from Kiana is the orange star eyes that glared with ruthless and cold attitude of a destroyer. Suddenly a Honkai Beast spawned behind her and attempted to kill her. She closed her eyes and the attack didn't come and instead looked up and saw the flickering camouflage of an AE mech grabbing the weapon of the beast. Suddenly multiple AE mechs started to appear and try to protect Mei and approach the 2nd Herrrscher.

Mei: This is... Anti-Entropy?

https://youtu.be/dxLsI5AKLpE

HoV suddenly formed her clothing and conjured up multiple black holes from the coattail eyes allowing for multiple Honkai Beasts to be summoned. She walks with such cold, calm and composed attitude. 

She only watch as the mechs get rid of all the beasts she summon, all the while Y/n can hear the sounds of the battle as he hurriedly rushes there quickly while hearing her piece about humanity.

Herrscher of the Void: Humans, your existence is a mistake. War, deceit, jealousy, greed. You once took everything from me. But today, I will devour everything. Because I am the Honkai!

The mechs started to attack and black the beasts attack, the ranged mechs began firing all projectiles at her but nothing works as she merely sees this as simple obstacles in her way as she snapped her fingers and takes hold of the fire. She smiled evily as she simply sends it back to them. Destroying everything and showing how destructive she is. She looks below as the dragon Benares returns to her, knowing it wasn't even over at the fight.

Mei can only look in horror and everyone else from the ship watched it happen. The Hyperion was in shock of what HoV can do but the Celestial Being only sees this as a neck-cracking moment to prepare for battle. She only looked down at Mei with cold and pride. Meanwhile, Y/n can see the enemies he will face as he knows, she's looking for him too. He then runs towards the debris to join with Mei.

(End OST)

Y/n: Theresa you better be there when I make my arrival...!