Ch. 1 New Classmate

Y/n and Gakushu knew each other ever since childhood. But it changed when they went into Konugigaoka Junior High School.

But Y/n was something else than just a normal person, she was a Class A assassin. With that, she was part human, part something else. She had tentacles like Koro-Sensei, and what hurts him hurts her too on her tentacles, unless it's the anti-weapons used on Koro-Sensei. Will she have time to kill the alien, or will her allies, or Gakushu, find out what she is?

First story on this anime so please tell me if it's good or not. there will be some fluff, but only if you want smut and lemon I will put that in here