Deisui shite Osotta no wa Suki na Hito no Otouto deshita.

Akira Utagawa is an ordinary university student with a big secret: he is in love with his childhood friend Naoto Oohinata. However, unable to express his feelings, he begins to satisfy himself with one-night stands. But suddenly, his crush appears before him and announces his marriage to his girlfriend. In desperation, Akira drinks away his pain and forces Haruto, Naoto's younger brother, to make love with him.

The next day, Akira immediately regrets his actions and wants to make amends. Surprisingly, Haruto is unbothered and even confesses his feelings to the offender! As the two start growing closer, Akira wonders if Haruto might just be the person whom he has been waiting for.