Mitsuki and Yuya become stepsister and stepbrother because of their parents' marriage. Mitsuki can't get along with her new family and Yuya doesn't know how to approach his new stepsister. One day, Mitsuki becomes possessed by the spirit of Hiyori. Hiyori likes Yuya and believes Yuya can help her get to heaven. Hiyori places a leather chastity belt upon on Mitsuki and a plan takes place to help send Hiyori to heaven.
Tenka Hashimoto
Yūkichi Kobayashi
Mayu Mitsui
Mika Yano
Kazue Akita
Reiko Hayama
Tsunaki Fukushima
Ini Kusano
Kenji Iwaya
Aiko Masuda
Itto Shimada
Maika Ohtsu
Rinku Kanai
Yuki Aoyama
Hajime Inoue
Anna Yanagi