Previously 

Kitz: I'll ask one more time! What are you really?!

Eren: I'm human!

Kitz: I see... Don't take this personally.

Kitz has gone too far and he just ordered to prepare to fire. And then Y/n has begun to manifest his other persona. They begun to activate to activate their moves. The cannon fires and Eren including Y/n has begun their protective attacks. Eren transforms into half-Titan and Y/n activated his GN Field.

Hallelujah: Let's show them how we do intimidation and things her, Y/n!

Y/n: 'Yeah, let's show them what it means to face the wrath of a Gundam Meister, Hallelujah!'

*opening starts*

Interior Wall Rose

Daz is scared and just talks to Marco and he slowly loses his sanity.

Daz: Marco... I can't do this anymore... I can't fight Titans anymore! 

Marco: What's gotten into you?!

Daz: My friends got eaten right in front of me! My friends got killed, yet I didn't feel any sadness or hate at all! Deep down, I just felt glad it wasn't me...! *holds his head* But it's my turn next. I've realized what our job is... It's basically fighting and fighting until we eventually get eaten! W3ell, screw that! I'd rather end things now *unsheathes his blade and attempts suicide*...!

Marco: *stopped the suicide attempt* Stop! Pull yourself together! You aren't the only one, you know! We're all fighting back the fear inside us! Just look at Sasha!

Sasha gasps

Marco: Even after what she went through, she's still an upstanding soldier!

But then Sasha screams in pain, making Marco get surprised by this.

Sasha: Umm... My stomach hurts... please cart me away with the wounded.

The two stopped, but then Daz tries it again.

Daz: Lemme die! I just wanna die!

Marco: Hold on! Stop it!

Jean and the others just watched the arguing between those two while the others have an issues of their own.

Jean: Well, the order to keep our mouth's shut makes perfect sense now. As if the situation isn't bad enough already. *slams his hands on the table* If they knew about Eren...

But then a strange whistle is heard; and then a loud boomsand crash takes of various surprise from everyone who heard it  or felt it.

Reiner: Cannon fire?

Jean: But why is there many shots?

Soldier 1: *points up top* Look! Smoke! 

Soldier: 2: It's inside the wall!

They jus yelp about it but what they didn't know, a certain angry Gundam and a Titan just sent down their noise to the whole crowd in the interior.

Garrison(B):  Did it bust down the water gate?

Garrison(B): Impossible. It's the sturdiest part of the whole wall!

Garrison(B): Maybe they set off a shell by accident?

Garrison(B): but then why is there so much smoke?

Reiner just frustratedly sighs and picks his ODM grapple trigger.

Jean: Not now. Is that Titan steam?

Reiner just grapples and Jean just yells.

Jean: Hey.

The rest follows up like Annie, Bertholdt and Jean to the smoke. 

On the scene, lies the half-form of Eren's Titan and the 00 Core Cannon armor. Armin got scared including the rest of the Garrisons while Mikasa just has her neutral look. The 4 saw it as well from the rooftop, shocked at it's situation. 

Reiner: What the heck is that?

Bertholdt: And what's more, is that ball thing.

Hallelujah smirks as he saw the looks on their faces.

Hallelujah: This shall give them the demonstration...

Mikasa grips her sword when they see the Half-Titan form and the 00's GN Field, protecting them. Armin got scared of this, as the bones of it began to crack and the OO began to move and face them.

The sound made the Garrisons frighten.

Garrison: It's alive.

Rico: Captain Woerman!

Kitz just frightens as Titan Eren's eye began to move and looks at the captain, including the 00 looking at him menacingly.

Kitz: W-Wait and see what it does! We can't risk getting near at it! Stay on alert, everyone! Remain on standby! Artillerymen, reload the cannons!

But then the eye of the half titan began to move as well as Eren. Eren wakes up and removes himself out of the body. He then sees his uncomplete form in horror.

Eren: 'What is this?'

Armin is trembling as he saw them unmoving at their spots.

Armin: I-I remember hearing the cannons go off... After that came a sound, shock, and heat! And now we're inside a giant ball and skeleton-

Mikasa: Eren and the OO protected us. *Armin looks at her* That's all we need to understand for now.

But then, he saw a flower inside the skeleton their caved in.

Armin: 'Flowers, only on the inside...?'

He's about to observe it when Eren called out.

Eren: Hey! You guys okay?!

Armin: Eren! What is this?!

Eren: I don't know! But it's already starting to vaporize, just like a Titan's corpse! Let's get away from it while the big one is distracting them!

Eren walks underneath OO to to observe them; the Garrisons has their owned narrowed eyes.

Eren: Can't tell if they're watching and waiting or if they're in a daze... The Garrison Regiments isn't showing any signs of activity for now... but I'm sure they'll start attacking again soon enough.

They then walk to him and looked up to see Eren's incomplete Titan form vaporizing and the OO's vent shafts on it's cannon emitting GN Particles forming a sphere around them.

Eren: But *holds the key to his House's basement* there is one thing I remember now. The basement. The basement of my house! My dad said it'd all make sense if I go there! He's also the reason this has happened to me... If I go to the basement, I might figure out what the Titans  and these machines are too!

He looked pissed and furious at this point after his father kept it a secret this whole time.

Eren: *smashes the bone* Damn it! Then why did he keep it a secret?! Thousands of Scouts have died trying to get that information! It's the only hope that humanity has! And he just kept it tucked away in our basement all this time?! What the hell was he thinking?! And where the hell has he been these last 5 years--

Mikasa: *taps his shoulder* Eren. We have other things to attenc to right now.

Eren: Yeah.

Mikasa suddenly looks at OO with a sign look. Hallelujah understands what this meant.

Hallelujah: Heh. Y/n's right. You kids are stubborn! 

They walked away as the smoke clears out to see the ones they're messing with.

Garrison: The smoke's clearing!

Garrison: Attack it on sight!

Garrison: Let's finish it quick!

Kitz: Hold your positions!

But then OO began to punch the eroding titan form to buy more time for the three. The Garrisons covered their faces again.

Eren: I'm getting out of here.

They're surprised by this including Y/n and Hallelujah.

Armin: And going where? How?!

Eren: Anywhere will do for now. Then I'll go over the wall and make for the basement. After I changed into a Titan again. 

Armin: Can you really do that?

Eren: I don't know how I'm doing it, either. But I know I can do it! It's just like how I can't really explain how I'm moving my arm. 

He remembers what he did before OO butts in to protect them from other cannon fires.

Eren:; Just now, my mind unconsciously focused on stopping the cannonball. That's why it decayed; it only had the capabilities and endurance for that. But for the big one, I don't know how... But I think it has those shafts that releases small stars to create this sphere.

He then breathes rapidly and clenches his fists 

Eren: Next time I'm gonna be an even stronger one... I'm gonna be a 15 meter-high one that can slaughter other Titans, like before!

But suddenly, Mikasa began to notice Eren's nosebleed.

Mikasa: Eren! Your nose is bleeding...

He wipes it and and notices it, Armin began to explain what's happening to him right now.

Armin: You look really pale, and your breathing is rough. Something's clearly wrong! You're not well!

Eren: My health doesn't matter right now! I have 2 ideas in mind. You guys including the mechanical one can get through this alive if you stop trying to protect me. I've already caused you enough trouble as it is, so I'm gonna go it alone from here on out.

Armin: *gasp* You can't be serious... I-

Mikasa: Eren. I'm coming with you.

Eren: No!

Mikasa: If I don't keep up, you won't worry about me. But I won't have to do what I say, either.

Eren: I'm serious here! Just forget about it! I'm not your little brother or your kid!

Garrison still has  unclear of what's going on inside the smoke. But then Rico advices Kitz the coward.

Rico: Sir. The cannon is almost reloaded. What are your next orders?

Kitz: You will wait for my signal!

Rico: Yes, sir!

Armin and Y/n is now analyzing the situation while the two bickers.

Y/n: 'Tch. The GN Field will be gone at any minute. Hallelujah and I need to enact our act to them, if ever Armin's plan didn't satisfy or scare them.'

Armin: 'For now, the Garrison Regiment isn't showing any signs of launching a close-quarters assault. If they were, Mikasa or the OO would've sensed it faster than any stray cat. Assuming they reload in the shortest time possible... it'll take them about 20 more seconds. Comparing it to the OO, it's weaponry right now doesn't require to reload. I figure Eren will spring into action and be gone before then...'

He then remembers when he was a kid with no idea what to do; he can't fight back against the bullies, but Mikasa and Eren can.

Armin: 'Why am I reminded of that at a time like this? Is it... because this is the end for us? In the very end, I never amounted to anything more than a coward... They were there to help me so many times... but not once did I ever manage to help them.'

Remembers his training, a year ago.

Armin: 'How can I possibly call myself an equal friend? How can I possibly offer to go with them? I'm not even confident I can keep up...'

Armin just gives up and just sits down with no hope at his heart. Only remembering their childhood.

Armin: 'I guess this is the last time... the 3 of us will ever be together...'

Mikasa: Eren. I am-

Eren: Wait, Mikasa! I said I had two ideas, remember? *He looks at Armin* Armin. I leave the decision to you.

Armin: *snaps back to reality* Huh?

Eren: Even I know how unrealistic this plan is. *stares at his arm* The best option would be to use this Titan ability in a systematic way, under the military's direction. *looks back to them* I know this sounds crazy, but if you can convince the Garrison Regiment that I'm not a threat, I'll trust you and go with that option. That's my second idea. If you don't think you can do it, I'll go with the third idea as a last resort.

Armin: What's that?

Eren: The machine will knock some sense into them. I figured it can go crazy like me. Decide in 15 seconds. Can you do it or not? I'll respect your opinion, whichever it is.

Armin: Eren... Why are you entrusting such an important decision to me?

Eren: Even when things get ugly, you always make the right call, y'know? I figure that's worth relying on.

Armin: *confused* When did I ever do that...?

Eren: All the time. Like that time 5 years ago... If you hadn't gone and gotten Mr. Hannes for us and my mother, We would've been Titan food.

But then time becomes slow around him as he gasps and sees a memory of someone inside his head... A voice of a boy who's the same age as Armin.

???: That's the reason we won't give up! Because that would mean we'd be denying that we all love Gunpla. So you see, that's the reason *multiple voice resonates with the boy* When it comes to something that we love, we'll never give up!

As his fist glows, as well as the eye of the Gundam OO Sky. It glowed even brighter as Armin's eyes wide open.

He realizes what those words of a strange boy meant, even though there's a word that's completely strange to him. What matters is that he can't give up no matter what, when it comes to something that he love.

It even clearly understands it, by the time he did that 5 years ago. He loves his friends when they're just kids, no matter how many times it gets worse, they will overcome it.

As the bone cracks, broke and fall to the ground, he thoughts to himself.

Armin: 'It was all in my head... I convinced myself that's how I was... I convinced myself I was helpless and a burden... *lowers his head and looks at the two and the OO* But they never felt that way at all...!'

Eren: Armin! We're out of time!

The Garrison has signaled that they're finished reloading.

Rico: They've finished reloading, sir! We can fire at any time!

Armin: 'These three, who are willing to place their lives in my hands... are the people I trust more than anyone in this world. What more convincing do I need than that?!'

Armin stands up, proudly.

Armin: We will persuade them, without fail. I'll need you to act as non aggressive as possible

They both nodded and Hallelujah preps his entry to uncover Kitz's cowardice. Then Armin, thoughts to himself.

Armin: 'Something's been bugging me ever since Eren started fighting as a Titan and the OO fighting as a mechanical titan or pilot he says. I haven't collected my thoughts yet, but I'll do this! I'll have to think as I talk!'

He then removes his ODM gear making a loud noise as the Garrisons back off; and then OO disables the GN Field and makes a step forward it made a very loud noise making the Garrisons including the ones who are watching from afar trembled a little bit. Armin looks at the Gundam and just nods to him and covers his face from the smoke. The OO reveals itself to everyone as the sun strikes to the Gundam.

Kitz: *girl scream voice* Halt!

Armin raises his hands up with muskets pointing at them.

Kitz: You've finally revealed your true form, monsters! I'll do it! I'll give the signal to fire!

Armin: They're not an enemy of humanity! We're willing to disclose everything we've learned! 

Kitz: Begging for your lives won't help you! They have revealed their true form for all to see! What's more to say?! If you insist they're not our enemy, then show me proof! If you can't, then we'll simply eliminate the threat they posses!

Armin: There's no need for proof! 

Hallelujah: 'That's right... There's no need!'

Armin: In fact, this isn't about what we perceive them to be!

Kitz: What?!

Armin: I hear that countless people saw them! In which case, they surely saw them fighting Titans as well! And they must've seen the Titans swarming around them too! In other words, the Titans saw them as prey- just like they see us! That's an irrefutable fact, however you look at it!

As the mutters  started to spread.

Garrison: *mutters* He has a point...

Garrison: *mutters* The titans, on our side?

Garrison: *mutters* That's crazy...!

Kitz has seen that they're agreeing to this, he thinks no one is on his side now.

Kitz: Prepare to attack! Don't be taken in by their clever ruses!

Armin: *gasp*

Kitz: Their behavior has always been beyond our understanding! It's entirely possible they'd take on the human form and use human language to deceive us all! We can't let them have their way anymore! 

All of them return to threatening them.

Armin: *gasp* It's no use... He's abandoned all logic... He's afraid to think... *looked at them* Eren! Mikasa! OO!

Eren has decided and signals him to take the third one. Armin looks at the OO

Armin: Now!!!

Hallelujah and Y/n has decided.

Hallelujah & Y/n: Our turn, now! *activates external coms to the max*

Just then they heard and seen the Gundam glowed its eyes and moved its head  to look at Kitz, directly.

Hallelujah: Hehehehe. So, is this how we gonna play, huh?!

Hallelujah, the super soldier has appeared. They just have their body shaken a little bit as the voice of the mad and sadistic super soldier have boomed out his voice to everyone even the Cadets have heard his voice.

Hallelujah: Look around you, some agreed to the kid while you... You just cower in the corner like an infant baby! Maybe one day, you'll be eaten, alone, with no one on your side because of your cowardice attitude!

They began to have their jaws open as his way of persuasion is intimidation. Armin is just about to gather up his final words but he saw the OO in his place now, he thought to himself that maybe he must make notes of this.

Hallelujah: Let me give you an example of it *shows the screen of Kitz threatening his own men back at the supply room at their HQ* You see, that? You're gonna abandon one of your own?! You Garrison Captain haven't think twice.

Kitz: You...

Hallelujah: Huh?

Kitz: You will be destroyed as the monster as punishment for disrupting the plans I built, and it's order!

Hallelujah: Stop exaggerating. What order do you have... that leaves his own soldiers to die at the HQ on the supply room and the vanguard squads and middle guard squads?

They all gasped about telling he knew their plan and what happened at the supply room. Others who were at the HQ ew hours ago, felt their heart squeezed as there's someone who has witnessed their pain and fear inside the HQ. Kitz has his whole body and voice tremble as he's about to ran out of ideas and words as the super soldier not lets him speak another cowardly reasonings.

Kitz: Y-You're a spy! You will die fast and painful. and act as a treason and siding with these demons-!

Hallelujah: I said, stop exaggerating! Besides, I'm pretty pissed off about your plan anyway! So, I'm not just gonna talk about it in front of everyone! *points to the cannons* That's a cannon?! Pathetic. *arms his GN Cannon* This is a cannon!

All of them gasped in panic as they saw him his shoulder GN Cannon glowing pink ready to fire. One is pointing at them while the other is pointing at the walls up top. Hallelujah has his grin even wider.

Hallelujah: How does it feel now to have your life be threatened the same way you threatened them by overwhelming force, with no chance to give them an order that helps them to be alive and useful to the others unlike a coward and pathetic human like you!?

Kits: N-No... Stop... You have no idea....!

Hallelujah: Who will you think of last? Your position? Your cowardice attitude and ego? You're probably reliving your childhood now as your life darkens before your eyes...!

Y/n then to act as a role of Allelujah back then.

Y/n: *pretends* Stop it, Hallelujah.

Hallelujah: Huh? Hold on, Vidar. This is the best part. 

Y/n: *pretends* Please, stop.

Hallelujah: What are you saying? I'm doing this for you because yoou couldn't,

Y/n: *pretends* I said stop!

Hallelujah: I see. I got it, Vidar. I guess, I can't argue with you.

Kitz felt relieved about it and the others as well. Oh, how their relief has been easily destroyed.

Hallelujah: Just kidding!

He pulls the trigger as it fires at the sky missed the humans; making everyone scream or cover their eyes at the brightness or shockwave of it if its firepower would've hit them. 

Hallelujah: HAHAHAHAHAHA!!! This is fun, isn't it, Vidar?! How is it feel to be threatened by one of your own, who has known wars, huh!? Tell me now, Kitz!!!!! CAPTAIN KITZ WOERMAN!!!!!!!

As his statement makes everyone shivers but also thought about Kitz cowardice. When they see that the shot missed them and it only melted half of the cannon's barrel.

Kitz began to scream with his voice losing it...

Kitz: Open-!

Someone holds his arms already at that point. It was an old man with a gray mustache and a bald head. It was Dot Pyxis.

???: That's enough. I see your still as delicate as a young deer despite your size.

Kitz: *surprised* Commander Pyxis...!

Everyone is surprised  as a the Commander of the Garrison has arrived in time. He stepped forward.

Pyxis: Can't you see this machinery's attitude?! Quite the statement I gotta say. I just recently arrived, but I've been filled in on the situation. Then I hear this voice informing your mistakes and flaws of this plan of yours. *looks at Kitz*  You're in charge of the reinforcements now. Something tells me we ought to hear these people out, you see...

Armin just kneels down  with a sight of relief on his face while Eren and Mikasa are surprised. Hallelujah and Y/n had a smile and sigh while turning off external coms.

Hallelujah: Hehe. About time the old man show up.

Y/n: Yeah. If it weren't for him, we'll use excessive armed interventions on our own already. Which is idiotic but risky.

Hallelujah: Okay, you take over now, you've gotta explain to them a lot of things.

Y/n: Yep. *nervous and down* I'm gonna expect a punch to my stomach soon.

narrating

According to the Survey Corps' reports, it was anticipated that the Titans would appear form the south. These reports are proven accurate when the Titans attacked Shiganshina District, located on the south of Wall Maria.

Therefore, it was surmised that their next and most likely target would be the fortified Trost district.

Trost District, Inner Gate

Pyxis is silently watching the Titans trying to reach Pyxis whose at the top of a 50 meter tall wall while drinking his own alcohol.

Dot Pyxis. The top officer in charge of Trost and the entire southern territory, and the man given full authority for the defense of humanity's most vital region.

The crew is now on top of the wall, watching the wrecked Trost District. Pyxis stared down again at the Titans who each has an eye of hunger.

Pyxis: Nope, none at all... I certainly wouldn't mind being gobbled up by a beautiful girl Titan...

And he's also known for being a full-blown eccentric. Kind of having jokes that are dark but funny for him, reminds of Hallelujah Haptism a little bit.

narrating end

Meanwhile down the grounds, Kitz is still a coward, but hides it through his own voice

Kitz: What is the commander thinking?! Taking those freaks up there without a single bodyguard and trusting the madman...!

Rico: I don't know. He's never been one to make much sense.

Ian: Sir. We've finished reassembling the troops.

Kitz: Right. Good work.

At the top of the wall, Armin explains the situation of Trost currently and the plan to take it back.

Pyxis: I see. And visiting this basement will make everything clear?

Eren: Yes... Do you believe me?

Pyxis: Seeing as you, yourself, are unable to provide validation, for now I'm simply keeping it all in mind. But I do believe I can tell when someone is being sincere or not. I will personally guarantee your safety. 

They sighed in relief as they're safe for now. Pyxis gets back to the topic.

Pyxis: Cadet Arlert, was it?

Armin: Yes, sir!

Pyxis: Earlier, you mentioned that with this so-called "Titan abilities" it would be possible to retake this city. Do you truly believe that? Or was that just a desperate plea for your life? 

Armin: Well.. it's both.

Pyxis continues listening

Armin: I was going to suggest that Eren, in Titan form, could take that giant rock and use it to block the wrecked entrance. Meanwhile, Vidar will be inside his Titan vessel, use use his armors to provide escort, protection, attacking or even back-up, depending on its looks. *looked down* It was just an idea I came up with on the spot... I just wanted them to see the possibilities of Eren's ability including Vidar's and how it could help solve the situation we're in...

Pyxis looks back to the district.

Armin: Of course, I was desperate to survive, too!

Pyxis: "Desperate to survive..." There's nothing more credible than those words.

He drinks another shot of his own ale. Y/n just blunted about it inside his head with Hallelujah.

Y/n: 'Seriously, what's with that alchohol he's drinking?'

Hallelujah: 'For once I agree with you, how is he still not drunk from that?'

Pyxis: Vidar, is it?

Y/n: Yes, sir!

Pyxis: What do you say, are you in?

Y/n: I'm more than just in for the task, sir!

Pyxis: Hmm. 'This soldier has guts to give' What about you, Cadet Jaeger?

Eren: Sir?

Pyxis: Can you plug the hole?

Eren is hesitating and looked stressed right now as his eye bugs have begun to appear.

Eren: Well... Uhh... I'm not sure. Right now, I don't really understand any more than the rest of you. Maybe I can. Maybe I can't. I don't know. I don't feel I can risk giving an irresponsible answer...

Pyxis: Ah, yes. My apologies. I asked the wrong question. Will you do it or not?

Eren is surprised by this question as he looked eye to eye at him. Pyxis then points at the outside.

Eren then realizes that there's a vast world out there, living beings like him. If he fails, then the humanity is finished. But Eren, did not hesitate anymore. As he narrows his eyes and faced Pyxis. 

Eren: I'll do it. I'll do it! I don't know if I can plug the hole or not. But... I'll do it!

As the winds whistle through the hole and the OO Core Gundam eyes are watching the wrecked district acting as an watcher.

TBC