恋狱～月狂病～
Yura Kamizuki (Koiyu)
Takashiro Shugo's ex-girlfriend and Kazuna's missing sister.
Rain Sparrow (Love in Prison)
The person responsible for managing the snow white.
Rouko Ayazaki (Koigoku)
Qiqi's classmate.
Shugo Takagi (Koigoku)
A former police officer engaged in private investigations in Ueno.
Takashiro Qiqi (Love in Prison)
Younger sister of Takashiro Shūgo.
Hatsune (Koiku)
A girl who lives and works in the snowy white.
Kazuma Arishima (Koigoku)
Detective at Ueno Police Station and former superior of Akigo.
Ichi Yaginuma (Koigoku)
Arishima Ichima's new subordinate.
Shicao Shizi (Love in Prison)
A mysterious woman wandering alone in a poor neighborhood.
Fuyushi Aoki (Koiku)
Female cadres who organized the "Death Hand."
Rin (Koiku)
A member with a cheerful and snow-white personality.
Yiyu (Love in Prison)
A woman who works at Xueshiro and is closely connected to Rin.
Kazuna Kazuki (Koiku)
I hope to find a young actress like Yuri, the older sister.
Kaoru Fukami (Koiku)
A teacher at the church school where Qiqi works.
Akao Ikuma (Koiku)
He is the art director of the theater troupe to which Wa Na belongs.
Love's Prison (Love)
The opening theme song of "Love in the Prison."
Qiqi's Catholic Academy
The academy attended by Shichi and Louzi, where Kaoru Fukami teaches.
The theater troupe to which He Cai belongs
Akao Ikuma, the theater troupe of Wana's activities, is responsible for art supervision.
Death Arm (Love in Prison)
The organization to which Tofumi Aoki belongs.
Snow White (Love in Prison)
The Ueno shop where Shugo Takagi stays.
Miya Suzuka
Script for Love Prison ~Moon Madness~.
Liupu Hall
Lyrics for 'Love Prison' by Love Prison ~Moon Madness~.
Kazuhiko Iida
The original script for Love Prison ~Moon Madness~.
Keiichiro Kozuki (Koigoku~Moon Madness~)
Yura and Kazuna's father; During the search request, he declared to Akigo that Yura was dead.
サクラメント True End
In the Switch version epilogue, Nakawana and Akigo are already married and have welcomed their daughter.
Sea light
The ending of Yura's epilogue on the Switch version. Yura faces whether to trust Akigo and accept her child's choices, and the ending presents her daughter's future.
Love in prison ~ Moon madness ~
The Switch version of "Koigoku" is set in postwar Ueno, Tokyo. Detective Akigo Takagi investigates the whereabouts of his former lover Yura Kazuki and becomes entangled in a local serial murder case.