Kanojo no Ura Sekai: Akiko Side (Scripted, Japanese)
Genres: Drama, Romance, Mystery
Status: Ended
Premiered: 2021-03-22
Ended: 2021-03-26
Network: Fuji TV
Country: JP
Airs on: Monday, Tuesday, Wednesday, Thursday, Friday
Air time: 00:25
Runtime: 20 minutes
Toshiro proposes to his girlfriend of three years, Akiko, but Akiko disappears the next day, leaving the engagement ring behind. In this perspective, we find the behind Akiko's "hidden world".