Little Tokyo, USA In a lonely hotel room, Little Tokyo's Detective Joker was waiting for a woman. The rain grew stronger and filled the storm. And the woman came to the room where the Joker was staying. The woman's name is Serika. She was Joker's former lover. Serika came to ask for help. Appeal to the Joker with a scared "murdered" voice. There, a mysterious group appears in the hotel lobby. Nicole and her friends control the buying and selling of cocaine in the Little Tokyo area. The Joker desperately protects Serika, but Nicole and others take him away.
A new shogun is appointed to the throne when his brother dies. He find out that the former Shogun one of the women from his brothers harem became pregnant, but she escaped. The new Shogun would loose the throne if the child is a boy. Genshiro is doctor who, among other things, performs abortions, and is sheltering his love, another women who escaped from the harem. The new Shogun threatens to arrest the girl unless Genshiro hunts down the woman and aborts her child. Genshiro learns that the woman releases a "musky scent from her special area" when in ecstasy. Both Genshiro and his friend set out to find all the women of the former harem and have sex with them, by force if necessary.
Six high school tennis clubmates, including railroad investigator Noriko Hanamura, are going on a day trip to Kawaguchi Lake. However, one of them, Ayako Hirayama, does not show up even after the arranged time for the meet-up has passed. Magazine writer Yumi Tachiki, who planned the trip, calls Ayako but gets no answer, so Noriko and the others, believing Ayako will catch up with them, proceed to their destination. Even though Yumi and Noriko call Ayako many times, she does not answer. Yumi receives an urgent work request after arriving at Tenjozan Park by ropeway, so Noriko and the others return to Tokyo leaving Yumi at the mountain. None of them had any contact with Ayako the entire day. That night, Noriko receives a call from the Yamanashi Prefectural Police informing her that Yumi's body has been found stabbed in Tenjozan Park. One of the ropeway employees happened to witness a mysterious woman wearing a hat and a mask following Yumi down the mountain trail that evening...
