The former female members of a high school basketball club have gathered for a party in memory of their basketball coach Ando Katsuhito. 39-year-old Enoki Kana, 53-year-old Tsuruga Yuko and 27-year-old Mishiro Akane are noticeably unhappy. Each of them has just suffered an unforeseen incident, prompting them to say with a touch of self-derision that their prime was during high school. Kana’s image as the “perfect stay-at-home wife” has shattered with the exposé on her husband’s affair. Yuko has not only suddenly fallen from the fast track at her company due to allegations of sexual and power harassment, but also discovered that her boyfriend is cheating on her. Akane has been acting as a girl who has it all on social media but become the target of a huge backlash. While the three women belong to different generations and have different personalities, the one thing that they have in common is that they are former captains of the same basketball club.

Mio Meguro is a timid person. She is afraid of being hated by others, and this causes her to refrain from saying what she really wants to say. She doesn't have any specific things she wants to do. She got a job and eventually dated a man from her workplace. Mio Meguro wanted to marry the man, but he turns out to be a bad guy. Because of him, she becomes penniless and unemployed. Her life descends into a bottomless pit. Mio Meguro then happens to get a sharehouse, where the mysterious creatures known as yōkai live. The yōkai try to solve her problems in radical ways.