In the room of the Story Hotel, Hina, who is wearing a blonde wig and a gothic lolita, is accused of having an M-shaped spread by Masukawa, the director of the nursing care company. At the moment Hina is strangled and feels cheerful, Masukawa's view is distorted. When Masukawa looked around, he noticed a mysterious figure. Miki, an abbreviated name for the Research Institute for Bizarre Incidents, has started the investigation into the death of Masukawa. And at first, it was just an accidental death from a heart attack ...　

Set in the Aokigahara Forest, a real-life place in Japan where people go to end their lives. Against this backdrop, a young American woman comes in search of her twin sister, who has mysteriously disappeared.

Seiji is a third generation "Gosei kai" gang member. He works to build up the group's strength. Meanwhile, a journalist investigates a case that occurred 19 years ago. He meets Hayato, Daisuke and Asami.

A group of young pirates come from space to Earth to obtain the "Greatest Treasure in the Universe", which can only be acquired after obtaining the Ultimate Powers of the different 34 Super Sentai Teams. However, they end up running afoul of the Space Empire Zangyack, whose earlier invasion forces were wiped out by the 34 Sentai groups long ago. As a result, the space pirates use "pirate copies" of the powers of the older teams and fight the Zangyack forces as the Gokaigers.

The youngest sister Miyo is an illustrator but she is a shut-in. She does not socialize with anybody. The middle sister Mizuki is working at a bar. She gives all of the money she earns to her boyfriend, who is actually married. One day, the oldest sister Hoshimi, who is a painter, returns home. Hoshimi brings different men to the house, and has sex with them. The two younger sisters are thrown off by her behavior, until they find the reason for Hoshimi's frustration.