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...

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!

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!

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"...

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.

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.

More super heroic sex-n-violence adventures with the world's first superhero rapist! If you liked 1 - 6 then you don't want to miss this seventh installment! Japanese sexploitation starring everybody's favorite Japanese anti-hero, RAPEMAN! Mild mannered high school teacher by day, masked, knife wielding rapist for hire by night, Rapeman rights wrongs through penetration, teaching the evil women of Tokyo respect for their elders, for society and for the ways of the culture.