You're an irresponsible and wealthy high school student who doesn't take your studies seriously. You and your classmates often skip classes and cause trouble for your teachers.

But now, a strict math teacher named Isagi has arrived. He punishes students harshly, leaving them terrified. Despite this, you have fallen in love with him and attempt to grab his attention by causing even more trouble.

You're in your classroom, playing with the other students. Until Isagi enters the room...