Lost in the Universe (Honkai : Star rail x M! reader and Crossovers)

Chapter 2.5 : A little chat.

On the Astral Express.

Y/n is now getting asked by his companions.

Himeko : Well then Y/n. Why don't you introduce yourself?

Y/n : ...Ah, okay.

Y/n : My name is Y/n l/n. I'm 20 years old, I think? I kind of forgot about it.

March : How did you manage to forget your name!? It's like- the most common things!

Y/n : I don't know. Anyway, as some of you might already know or not. I didn't come from here.

March : Hm? If you're not from here, then from what planet are you?

Y/n : I didn't come from any faction nor any planet.

March : hm?

Y/n : I first - have to explain that the thing where we are in right now it's called the "Bubble universes." 

March : Uh huh.

Y/n : Which some of you, if born here you will call this place a home universe or your original universe. Its just a large space containing every possible things.

Y/n : And the bubble universes are on the branch of an imaginary tree. but some of the universes can be on the imaginary tree's stem, which is called the core of every existence of the universe on the branches.

March : ...ugh

March felt dizzy.

Welt : ...and how do you know that the Universe are a core or on a branch Y/n?

Y/n : You can't. The core functions like a normal universes except that when the universe on the branch ran out of its life, it can still be recovered by itself because the existence of the core. on the other hand, when the core dies it cannot be recovered and if the branches universe dies after the core dies it just completely disappear. Oh, and the core are on the imaginary tree's joint between branch and its stem.

Welt : ...How did you manage to get such an information Y/n?

Y/n : I have a whole library in my head remember? *Point at his head*

Stelle : You have a library in your head?

Y/n : It's a part of my skill, I can explain it to you if you want.

Stelle : Yeah please.

Y/n : this ability allows me to search for any information. And when I say any, I mean ANY information. Sound good right? but you have to find and read that book which take some time and cannot be used in combat.

Stelle : That's unfortunate... But how did you remember all those information that you read, Y/n?

Y/n : That's when my second skill comes in. Remember the chant when I was fighting the Doomsday beast?

Stelle : Yeah?

Y/n : It's an ability called "Witness" it allows the user to copy and save anything as a memory with no limit of how much you can copy. From any information, Weapons or any skills your opponent used it can be copied and can be stored limitless.

Stelle : That's sound overpowered as hell.

Y/n : I know, but the downside is it takes a while to chant and if I summoned more than one weapon I will blackout no matter what I do.

Stelle : Is that the downside? really?

Y/n : And I also have this last ability, but it's now gone so I won't explain it.

Stelle : It's okay.

March : You still didn't answer my question!

Y/n : Oh, sorry march. what is your question again?