A/n: You know... I shouldn't be writing this anymore due to the tears I shed while writing the previous chapter while watching the Final Lesson... At first, I wasn't gonna be emotional as I write this to the end... Turns out... I failed the mission... But then again, it's okay to let it out. So here it is, the extra final chapter, sets after the previous chapter and his "death" in the Honkai world.

A shadow covering his sight removes as the light shines down on his eyes, and he starts waking up. Looking at the blurry light, clearing up the view, he saw the first person looking at him in worry.

Himeko: Are you okay, Y/n?

Y/n looks at Himeko and his eyes start to widen and tear up. The person he can't save and break the destined fate is in front of him, alive and well. But the experience he had inside the simulation isn't any computer programmed.

It felt real and he harbors it even now after his goodbye in that world. His first reaction to her question is a quick hug to her, receiving a shocking gasp from the person he tried to save in the parallel world.

Y/n: I'm so sorry, I couldn't save you from your fate...! *hic* I'm so sorry...!

He couldn't help it, as he kept muttering an apology to her until he broke down and hugged her tighter. The woman's response when she saw this was a motherly hug as she welcomed him back to reality.

Himeko: Welcome back, Y/n...!

After a few minutes of calming the boy down, she looked at him with care with Welt behind her, needing knowledge about his experience in that world.

Himeko: Are you okay, now?

Y/n: *sniffles* Yeah... *drinks water* Much better...

Welt: What happened back there? We were watching the observation and we received quite spikes of readings on our side with the recent one being the highest readings of energy fluctuation.

Y/n: What do you mean?

Welt: The readings are so high it broke the sensors and limiters of the system and the whole place started filling up with GN Particles. What happened?

Welt fixed his glasses as he checked his cane after borrowing it and it was in perfect condition. Screwllum walks into the room as Y/n notices him and asks an important question.

Y/n: Okay... But a question, how long have I been in the system?

Screwllum: You've been in there for an estimated 9-10 hours...

Y/n: 10 hours...

Y/n looked at his hands as the memories inside the virtual world still lingered in his head. The happiness, the sadness, and even the memorable experiences he has with the students and his team of Celestial Beings in that world.

He gripped his hands after trying his best to save "her" at least. But he thinks he failed in the end because he's a Herrscher in that world. His symbolization of infinite possibilities has always been pointed to failure, just like how all Herrschers have been destined to fail and fall. Not even knowing the miracle he made in the name of Himeko Murata's memory.

So then he tells him, and the two new persons he held dearest now in his family, about everything he ventured into the world of Honkai Anno Domini. This brings back into the present and Screwllum has analyzed all of his reports.

Screwllum: I've analyzed the reports you have given, along with the interferences and high readings we have gathered in the data of the world you entered. Analysis: All of your experiences have made a certain impact from a strange system picked up by the IPC, along with the Genius Society and other parties that have received reports of strange outbursts in the whole Amber Era. Conclusion: Your experience and the use of your power have caused a new phenomenon even reaching the concept of a multiverse theory level.

Y/n was surprised to hear this, the impact of his power caused a multiversal phenomenon. He looked at Welt and Himeko they too were surprised by this as he asked them in worry if his impact had caused a major issue.

Y/n: Are you all okay? Nothing painful happened to you?

Welt: No, we're okay. Himeko is feeling much better now after hearing your side of the story.

Himeko: I'm glad you made friends in that world, even including me in the world you ventured. I felt a touch in my heart as I watched you deep dive into the world you landed. I would now understand that the Himeko in that world almost bears similarity to me.

Y/n: I...

Himeko: I know, you're thinking I would meet the same fate as her? Even if I did, I would rather risk everything and will do anything to save you all, including me. But I would need your help too, okay?

Y/n smiled when he saw her hand caressing his cheek almost resembling his mother back in Anno Domini.

Y/n: Okay...

Screwllum: Are there any questions that you need to ask further?

Y/n: Actually, Mr. Screwllum... I have four. Firstly, will this data be passed on to the Genius Society and other parties?

Screwllum: Answer: It will not as this is archived to the Celestial Being's databanks and the Astral Express' databanks.

Y/n: Okay, second, how's Stelle doing?

Screwllum: The individual known as Stelle is slowly recovering from her injuries sustained from the battle.

Y/n: Okay, good. The third question is related to the fourth question. Does Herta have any collection storage room in this space station?

Srewllum: Answer: Indeed. Would you like me to accompany you?

Y/n: Of course, and also let Welt along with Himeko come with me as well.

Welt and Himeko looked at each other at the suggestion he made as they were curious about why he would want the two of them to come with him. Nonetheless, they come along with Y/n and Screwllum on the way toward Herta's collection room.

When they get inside the big collection room, they can see what she has collected. There was a pistol that measured the percentage worth of an object or a living creature. There is also a pyramid of cards stacked together, a wing-shaped cape, and more.

Screwllum: Mr. Y/n, do you have something in here that interests you

But as he passed through the collections one relic was spotted in the middle and he was shocked to see what it was. As he started to run closer to it the others followed him. They saw what Y/n was looking for in shock, even Welt couldn't believe it either. It's a rusty, broken shard of a tip of a red sword based on its color.

Y/n: This is...

Screwllum: Hmm. This was the strangest relic she had ever collected and by far the rarest and yet dangerous as it stood in the middle and away from the rest of the collection. There are engravings created about this broken blade-.

Y/n: "She was reborn in the fire, she was smiling in the fire."

Y/n read the engraving and started touching it like it was an old friend reuniting. Suddenly the relic started to glow as it started to shake and the glass too as it emitted orange GN Particles and intense heat. It shook so hard that it shattered the glass and started to float in front of him, waiting for its master.

He reached out and he touched it. He was pulled inside a memory. He can hear someone sobbing, someone yelling, and someone wordlessly mourning in the memory's echo. Then, he hears a girl's voice saying the same engraving about the collection with an added meaning.

???: "She was reborn in the fire by you, she was smiling in the fire by you."

He then saw who that girl was, it was someone similar to Himeko yet at the same time different. He can see her, the red hair flowing and her skin has a metallic silver drawing of a flower on her chest and a blue fire igniting on her heart.

He suddenly awakened his Innovator powers once more as the broken blade started to reform into half part of the broken Godslayer Surtr sword. He holds it and it is immediately pocketed inside his infinite inventory pocket. He covers his mouth for a moment and cries a bit with a smile on his face.

Himeko: What was that?

Welt: It releases such intense heat that it can create its own GN Particles.

Screwllum: Just like what he said in his experience. Hypothesis: It's possible that the world you live in exists and was taken hold by the Garden of Recollection for someone to pick up the pieces and reform it back once again.

He immediately wipes it as he faces the three, with a smile.

Y/n: If it does, I now know that somebody will reach out to me soon. I will place my trust in them as I watch behind the shadows of the events that they will encounter.

Outside the Herta Space Station, Y/n is waiting for somebody as he watches the stars from the walkway with Himeko beside him and Eri, the best little sister.

Y/n: Sorry about me crying on your shoulder.

Himeko: Don't worry. It's alright. It seems you had a hard time inside that universe, meeting myself in that matter.

Eri: You know, brother. At first, I couldn't believe what you said about what you experienced in that device. But after seeing the readings and your tear-up moment that you never have shown to us; I'm starting to think that what you tackled is real and you're destined to change the destiny and fate of every person you met there. Just like what you did to me.

Y/n: But I failed to save her, and then finding out she was reborn in a new name and new person.

Eri: Changing destiny and the fate of every person isn't defined by what you could've done sooner. It might be the result of your interference and your effort.

Y/n tries to get what she meant but he could see the message behind it as Eri just apologizes to him.

Eri: I'm sorry... But it's the closest definition I could understand what you did to Himeko in that world.

Y/n: I know. The next time I return, I wonder what their reactions are when they see me alive after thinking I'm K.I.A or M.I.A?

Eri then heard someone walking towards them and it was the silver-haired girl with unique clothing. This was Stelle, the carrier of the Stellaron, Cancer of All Worlds.

Eri: So, you're the one that Y/n is talking about. The girl who wields the Cancer of All Worlds, Stellaron. Anyways, I'm Ericht Samaya, Y/n's younger sibling.

Stelle: It's nice to meet you, Eri.

Himeko looks at the interaction as she giggles at the scene. She then looks at Y/n and he nods at Himeko and looks at Stelle.

Himeko: So, have you thought things through?

Stelle: I..

Stelle looks at her hand and Y/n watches as he looks at her. He can see the vivid image of the happy lucky girl, Kiana Kaslana. One of the best students he ever held during his time in the world of AD Honkai. Stelle looks at them and answers.

Stelle: I want to join the Express.

Himeko and Y/n smile as he offers his hand out to her and tells her about their reaction

Himeko: Then...

Y/n: Come with us.

Thus begins another journey for Y/n in the stars and temporarily closes his showstage in the world of AD Honkai. His second advent is uncertain, but can only be known as they look up to the night sky and see the shooting star that guards humanity.

FIN

MISSION COMPLETE

NEXT MISSION: ???????