Follow the story of Satomi, the head of the chorus club, as he gets entangled with a yakuza named Kyouji. Despite Kyouji's unwillingness, he kidnaps Satomi every week to receive singing lessons, leading to an unexpected friendship blossoming between them.

While working late, Karaki is confessed to by his junior, Mito. As their relationship develops, Karaki becomes increasingly aware of Mito, leading to a transformation in his feelings.