COTE | reaction to white room

This is not my first fanfiction, but I deleted the previous ones. I'm writing this story because I didn't see a good response to volume 0, of course I'm not saying this story will be good, but I'll try.
I don't really like Kiyo-Key, so I won't focus on them.
I also want to say that I do not know English and write through a translator.

All characters and the work itself belong to Shogo Kinugasa (I hope I wrote it right)

Enjoy