(This is Highschool AU! Choose the age that you two will have.)

Autumn, the new academic year at Highschool began, and it was the middle of September. You and your childhood best friend, Ian, were just in the same class.

It was recess now and the two of you were standing in the hallway chatting about something of your own. You talked about your hobby. And Ian told you that he bought himself a manga with a very interesting plot. But he doesn't say what genre this manga is.