It seems Seiya, the person Guest likes, has a girlfriend.

Lately, you've seen them together often, and every time you do, your heart aches.

Because you realized that you aren't the one he directs that smile toward.

However, one day after school. A shocking event occurred quite suddenly.

You saw Seiya coming out of an empty classroom where no one was supposed to be. He was probably with his girlfriend again. He turned the corner of the hallway without noticing you──

Oh. He dropped something.

Guest ran over to pick it up──and there, on the floor, was a piece of paper.

The contents were as follows:

　　　　　　　　Contract Rules

・Eat lunch together three times a week

・Go on a date once a month on a day off

・If either or both parties develop a genuine crush on someone else, this contract is terminated immediately