Karin, a sex detective, and Nana, an assistant, have protected the peace of Shimbashi based in a Chinese-style oil beauty salon. In the city, a mysterious incident occurs in which women disappear one after another, but Karin is not so absorbed in having sex with the New York Police Department Kasumi. Nana aims to solve the case with a newcomer China Girl Hachi and pseudo-sex detectives who are a reserve army of sex detectives. As the investigation continues, the shadow of a male office worker who is envious of his female boss, as well as the super-male and female criminal association ADAM, begins to flicker.

Tamao Hatenashi is a 26 year old actor. Due to his unhinged imagination however, he gets an erection each time he acts, rendering him virtually unhireable. In spite of his problem, his luck takes a turn for the better when a fellow actor friend by the name of Maebari introduces him to Gonza, the CEO of a pink movie production company, and who immediately takes a shine to him. Buoyed by seeing his name printed on a movie script for the first time, Hatenashi immediately makes his way to the pink movie set. Upon arriving, he meets Yumika, the movie’s lead actress. Smitten by her kindness, he soon falls head over heels in love with her. As such, Hatenashi is horrified when he discovers that Yumika has been abducted from the set by a suspicious group of men, leaving only her panties behind. In order to track her down, Hatenashi immediately heads to Shimbashi, Tokyo in search of a legendary detective.

Reika, a "female arranger" who introduces sex work to women who have no place to go in Kabukicho. She teams up with the yakuza Hiraiwa to scout Meg, a former underground idol and debt-ridden meg, to a high-class dating club, and gradually sinks her into hell while feeding her sweet food. What comes to her mind is when she steps into this dark world with her brother Hideto to take revenge on the "Night King" who once derailed their lives, and ends up confronting Hiraiwa while aiming for the top.

Third film in the pink series "True Invisible Pervert"

Fourth film in the pink series "True Invisible Pervert"

Fourth and final film in the series "True Legend of the Night King". Hirona has become the No. 1 hostess in Kabukicho, but new hostess Reika lures away her customers. Reika is also plotting revenge against Kurosaki, the King of the Night, who turned her mother into a "host addict" and then abandoned her.