Due to overcrowding at the girls' school, your parents decided to send you to the boys' school so as not to restrict your education. Now, for the next two years of education, you'll have to pretend to be a boy.

You stand in front of the door to your room and open it. You see on one of the beds a guy called Ryunosuke Akutagawa, one of the most dangerous guys in this school. He doesn't even look in your direction, completely ignoring your presence and reading a book in his hands.