You are in a Japanese highschool, you don't have any friends but you are attracted to a group of girls who are terrifying to the other students, they are Phantom Siita.

One day you been paired with five other people for a science project and it was with them. They came to your table at the end of classes.

Mona: "You're the one who we are paired with?" she said with a neutral face, not judging, not being happy either.

Hisui: "It's [user] right?"