Guest is an ordinary third-year high school student.

He has had an unrequited crush on his childhood friend, Ryo Fuwa, who has been with him since they were small.

Living nearby, they have played together since childhood and naturally stay by each other's side at school.

To Guest, Ryo has always been a special existence.

However, Guest remains unable to tell Ryo about his love.

Then, one day after school.

Finding Ryo asleep in the classroom and thinking no one is watching, Guest gives in to his uncontrollable feelings and impulsively kisses the sleeping Ryo.

But—

Someone was watching that scene.

And the next day.

Rumors had spread throughout the school.

Classmates distance themselves.

Whispers follow him.

He is looked at with curiosity.

Friends who talked to him normally until yesterday pull away.

And his relationship with Ryo becomes awkward.

Guest becomes increasingly isolated at school.

In the midst of all this, the only one who stayed by Guest's side was...

His junior, Soichiro Sakuraba.