江洲名 祐希

The Protagonist of the game. Beautiful boy, he never really was interested about girls in a romantic way. Because of his parents and his past experience, he is disgusted by Love.

Despite years gone by, he still thinks of his childhood friend Aya-nee and wonders what happened to her.

When he learns that he will integrate a special school to find love, he has only one desire, it's leaving.

As soon as he arrives, he sees lovers everywhere. He now wants to teleport away from this place for morons. At the moment of leaving, he jostles a very pretty woman and falls with her. In his fall, he "un"lucky catches the bulky breast of the young woman. While he apologizes and ask to the lady if she is fine, he is shocked because he recognizes Aya-nee, who has now become a teacher.

Full of hope, he finally decides to follow her, in which will be today, his new classroom.

Yuuki isn't the type of guy to have sex friends but in Saki's route they ends up having sex despite beeing just friends but in reality they're in love of each other. Yuuki will want to confess his feelings to her and that he wants to become her boyfriend but will not do it right after they had sex because of certain circumstances, waiting for the right moment.