Pink Pineapple

Manami, the sole survivor of Angel of Darkness 2, is rushed to hospital where she slips into a deep sleep. A priest correctly suspects that the demon (now referred to as an Injuu) is inside Manami's body, but by the time he is able to confirm his theory, the creature has already moved on. As before, the tentacled beastie passes from host to host (by thrusting its slimy appendages into its victims' orifices), eventually ending up inside goody-goody schoolgirl Fumie, who does her best 'Linda Blair' impersonation for a while, before the priest inevitably turns up to save the day.

The all female crew of the transport ship Muse is on a mission in deep space. They pick up an SOS signal and discover a derelict space cruiser where all the women have died mysteriously. They take the only survivor, a young woman named Flair, and detonate the ghost ship. However, the danger is just beginning. With Flair on the Muse, the romances between the women begin to take a new turn. One by one, the crewmembers are attacked by a mysterious alien presence, desperate to find a way to reproduce with human women!

A crazy old woman steals what looks like all-butter shortbread from three statues wearing red hats. This causes an earthquake which releases ancient demon spores from a cave into a nearby pool of water. Unfortunately, this pool is precisely where a lesbian professor—part of a group of students and teachers who are spending a few days camping in the woods—decides to refill her water canteen. She accidentally ingests the spores, which causes the eruption of huge, thrashing, veiny, slime-covered tentacles that seek out new victims and enter the nearest orifice, thus allowing the demon to pass from host to host.

This time around, the demon is trapped inside sexy but wholesome schoolgirl Izumi, but is unable to get up to its usual tricks (rampant orifice invasion) thanks to the crucifix that she wears around her neck. Out to locate and destroy the monster are a nun and a priest, but their efforts are hampered by Izumi's evil protector Sakiko, who does her best to help the girl realise her true tentacle-thrashing potential (and, in a Carrie-style side story, also settle the score with a group of nasty school bullies who have been making Izumi's life hell).

Young and beautiful germophobe Ritsuko moves into a picture perfect neighborhood with her parents, being monitored by a research team who want to cure her of her debilitating phobias. Will her new neighbors be able to cure her of her irrational view of the outside world, or will coming face to face with this fairy-tale setting only drive her further inside of her subconsciousness?

Keisuke is a timid and nerdy high-school teacher by day, and a leather clad rapist "superhero" by night. One day, one of Keisuke's students is found dead, and her death is ruled an accident. Keisuke and the girl's mother don't believe her death to be accidental – and upon investigation, Keisuke and Uncle Shotoku unknowingly delve into an underground world of shady cops, scummy drug dealers, corrupt teachers, and a rape-porn ring. Of course, with Rapeman's upstanding moral values, he must do something to avenge the young student's death, bring down the criminals and right wrongs through penetration!

At a high school in Tokyo, several of the female students have been moon-lighting as prostitutes. A teacher catches onto this fact and goes about putting an end to it. Things go awry when he discovers he turns into a sex demon with tentacles whenever he gets aroused or angry.

After a tragic accident, Keisuke, mild-mannered teacher by day and rapist vigilante by night, and his Uncle Shotoku discover a conspiracy within a Tokyo hospital to sell children's organs to the Hong Kong mafia. Keisuke must use his expertise to unravel the corruption and right wrongs through penetration!

Elite office worker Koji is involved in a hit-and-run accident while on a business trip, and is blackmailed by the victim, Genzo. He makes a living performing S&M shows and demands Koji's beautiful wife, Masako, as his slave. Realising he can't escape, and blinded by his ambition for career advancement, Koji hands Masako over to Genzo. Suddenly kidnapped, Masako is taken to Genzo's training room and subjected to unilateral S&M show training, enduring extreme humiliation. But soon, Masako finds herself captivated by the pleasure she experiences...

A senator's secretary seeks out Rapeman's services to rape his fiancé who has been brainwashed by a local cult. According to the by-laws of the cult - if the woman has sex with a non-member, then she will be disassociated from the cult, thus bringing the wife back to her husband. This back-fires when the cult does not ex-communicate her - so Keisuke and Uncle infiltrate the cult to get to the bottom of their shady dealings. The resulting investigation embroils the duo in a conspiracy between the cult and a sleazy politician that can only be "righted through penetration"...

Rokuro Saito was hired as a gardener for the Kawarazaki family. The beautiful mistress of the house, Kyoko, who greeted Rokuro, was a widow with two daughters, Sachiko and Rei. Also living there were Rei's tutor, Kaori, a creepy male servant named Nanbara, and the maid, Misako. Rokuro was eager to take on the job, but Misako was cold and distant.

In this first installment of the series - we are introduced to Keisuke: mild mannered school-teacher by day - avenging angel of rape by night - and his goofy Uncle, who together run Rapeman Services. Their "services" are called-upon by a nightclub owner who tells a sob story about having her boyfriend, a current political candidate, stolen by his secretary, and asks Rapeman to "take care of her" as an act of revenge. This is done per the nightclub owner's request - but we soon find that the story was just a cover to cause a bigger scandal that involves rival a seedy rival politician and the Yakuza...

Based on the master of SM, Dan Oniroku. Another story about females getting tied up.

Three years ago, when Eriko was a new office worker, her boss, Adachi, had been trying every trick in the book to get closer to her. The two were having an affair, and Eriko, who had given him her virginity and got pregnant, had been giving in to his sexually harassing demands as he wanted to have everything to himself, and she had been trusting and waiting for Adachi. However, six months later, Adachi, who had stolen Eriko's project and been promoted from section chief to department head, unilaterally broke up with her. Stunned, Eriko drank heavily. On her way home, she passed out drunk on the side of the road and was kidnapped by unknown men. When she came to, she found herself in a deserted building. Koji and Saburo kidnapped Eriko, bound her with rough rope, and repeatedly raped her. Eriko could not refuse Koji and Saburo's persistent advances. As their encounters continued, Eriko began to enjoy the feel of the ropes against her skin...

College life getting you down? Switch to Seika College where the students are getting a whole new lesson in sexual education! Michiru's classes were dull and boring until her classmates, Chie, Saori and Takeru, started taking extra classes at a new night school. Utilizing subliminal messaging, the school helps their students ace their daytime college exams. Unfortunately, the school's professor forgot to mention the process has a few sexual side effects... The next day Saori's in for the sexual education of a lifetime! Classmates begin masturbating, her professor is fondling the other students before her eyes, and Saori is getting so hot she's literally exploding! Then, on the way home, Chie finds her sexual appetite soaring. She'll take any man, or thing, that can relieve her inner burning desires! Can innocent Michiru uncover the truth behind the evil night school and the mysterious deaths of her friends before anyone else dies? Or is she fated to become another victim?

After Sunflower Orphanage burns down, Keisuke and Uncle decide to re-open Rapeman Services to raise money for repairs. When a wife requests her cheating husband's mistress to be raped, the vigilante becomes embroiled in a conspiracy involving fraud, suicide, and a shady matchmaker. All the while, Keisuke is relentlessly pursued by a clingy spinster desperate for his hand in marriage.

After an assignment-gone-wrong, Keisuke decides to quit Rapeman services, leaving Uncle to take his place. All the while, they are targeted by one of their previous victims, who has hired a Rapeman look-a-like to tarnish our hero's good name and attack Keisuke's closest friends. Has Rapeman finally met his match? Tune in to find out! Same rape time, same rape station.

A single mistake transformed Shizue, the beautiful and virtuous wife of a professor... While eloping with an unsuccessful erotic novelist, Shizue becomes drawn to the eroticism of rope bondage. Shizue did nothing but face the inevitable and despairing end that was waiting for her...