Masahiko Mizuguchi (水口 昌彦, Mizuguchi Masahiko, April 29, 1959) is a Japanese producer from Kyoto Prefecture.
On the Japanese island of Amami, despite lacking parental guidance, Kaito and his girlfriend Kyoko try to find their place in the world. While Kaito suffers from the absence of his father, who moved to Tokyo after his birth, Kyoko must come to grips with her mother’s terminal illness.
Mizuki's husband Yusuke has been missing for three years. He suddenly comes back home as a ghost and asks Mizuki to go on a trip with him. Their trip consists of visiting the people that helped Yusuke on his previous travel.
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.