Hatsukoi Switch(2011)

Hatsukoi Switch

Riku has been in love with Souta, his childhood friend, since the boy kissed him as a joke in middle school. He definitely doesn't intend to confess, content to stay by Souta's side as a friend. But Souta's behavior towards him changes after they spend the night out drinking. Riku can't remember what happened that night, and worries that he said too much...