While his wife Reiko was away on a trip, Koichi brought his lover home. When Reiko returned home, she was so angry that she punched Koichi, and the injury left Koichi in a wheelchair. Since then, Reiko has been straddling Koichi every night, but...
as Reiko
as Yui
as Yuzuki
as Middle-aged woman
as Koichi Kuno
as Junichi