Tall and plain high school girl Mamori Wataya has always been a social outcast.

One day, she meets and befriends Soushi Fuji, the most disliked boy at school.

He asks her to drain the school pool for him, giving Wataya the first taste of how fun it can be to break the rules.

As Fuji reminds Wataya of the villain from a TV show she had liked since childhood, she becomes his sidekick and helps him in pulling pranks on the school and those who look down on them.

[6] In October 2023, Viz Media announced that they licensed the series for English release in North America.