Riku Shiina

Miho is a high school girl who is kidnapped by a mysterious "school" and trained as a slave. She is left unsold at the auction and is saved by a man named Yamamoto on the verge of being “disposed of”. Yamamoto is spying on the trafficking organization in search of his missing lover. Meanwhile, Izumi, Asuka, and Saki, who were bought at the auction, are subjected to hell as toys for perverted customers. Yamamoto kidnaps a buyer named Arikawa who won the bid for Izumi. He threatens the organization, but the operation backfires and he is captured with Miho. Miho, Yamamoto, and Izumi are gathered in an underground execution site by the school and are made to participate in an online murder show using a high-voltage current stick. Who will kill their friends to survive? The last game has begun!

Pink film directed by Daisuke Yamanouchi.

Rinko inherits her parents’ public bath after they pass away. She starts to manage the business with the help of an old and experienced worker, Mr. Tame. However, she soon realizes traditional public bath are no longer marketable in this new century. Rinko thinks of a "Bikini Body Wash Service" to attract more customers.

Natsumi, who is studying to become a dental hygienist, works as an assistant to Risa, a dentist who has just opened her own practice. Risa has a fetish for getting aroused and wet by the sight of patients in pain. One day, when Natsumi, who is late, rushes to the treatment room, she finds Risa thrusting her hips on top of a screaming patient...

During her last summer vacation of high school, Ayano had traveled alone from Tokyo to Kyoto to search for her best friend, Mirai, who had disappeared. Before summer vacation, the shy Mirai had been confessed to by Katsuragawa, a classmate and the most popular boy in school. Although they started dating, Mirai consulted Ayano about everything related to their relationship. Ayano, not wanting Mirai to get ahead of her, had given her virginity to an older university student, Shun, but ended up getting pregnant, which caused her to treat Mirai coldly. Ayano suspected that she might be the reason Mirai had run away from home.

Yuki runs a beauty salon and single-handedly raised her sickly daughter, Riku.One day, Yuki witnesses Riku and her lover Yuma having sex, and she begins to feel attracted to Yuma as a man. From that day on, her delusions and power struggles get more intense. When she crossed the line that should never be crossed with her daughter's boyfriend, her daughter's intuition sensed her mother's abnormality...

Four teenage girls are abducted, kidnapped, and tortured. Designated by numbers on their skin with a hot iron, young girls are ranked in the evening. The one that finishes last will then be punished if her friends fail to solve a puzzle…

Final entry in the series. Equally as repugnant as the previous ones, if that's a good thing or not it's up to you.