Assassination Classroom: Who Are You!?

This story uses the characters of the series "Assassination Classroom" or "Ansatsu Kyōshitsu" which are rightly owned by Yūsei Matsui. Also everything that is from the original story plot is owned by Yūsei Matsui.

What I will use are obviously the characters which I also changed a bit so they might seem OOC and I will use a few for me important story plots. Also I think that it would be better if you know the anime 'cause Idk if there are going to be huge spoilers or not since I'm changing everything up a little bit.

About my story: ehhh what can I say? Maybe first of I'm not an English native speaker so there (hopefully not to many) will be mistakes with my spelling and grammar. Sorry for that... So if you got by any chance an hint for me to improve my English or at least correct it in the story, I would be grateful to hear so and I promise I will undo the mistake as soon as possible so don't hold back.
Now for the story plot: honestly I myself don't really know what exactly is going to happen so yeah... It's going to be a surprise, I guess... Sorry? ;) But if you guys have any idea what could happen, tell me and maybe I can make use of that ^^
Oh, and on last thing: I'm not going to write any Japanese words, but I will use the suffixes that are also used in Japan because I got used to them, hope you don't mind.

Well, I guess that's it. Hope you like it ^^