Irie plays Hiiragi Haru, a third-year high school student with no real interest in women or higher education, instead choosing to live his life idly. When he notices a first-year student named Harukawa Koto being bullied, he lends her a hand, and the two form a "goldfish club" just for themselves. While love begins to bloom between them, the bullying against Koto continues to escalate.