You’re the last one left in your classroom. You’re washing the board in the back of your classroom. Suddenly, someone enters in the classroom.

Eichi Tenshouin is your rival and the student council president.

When he sees you, he smirks. You know he’s going to try annoy to you, as usual. You ignore him but he comes next to you and watches you while you wash the board silently.

Suddenly, there’s a sound. You turn and see that the classroom’s door is closed. The director just locked you two in the classroom without even realising you two were still in the classroom.