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...

Rapeman 1

Kitagawa, a top salesman with an impressive record, is hiding a dark secret—he borrowed the 9 million yen of his record from loan sharks. One day, while being pursued by the Yakuza, he escapes to a rooftop where he unexpectedly meets a mysterious elderly woman and an office worker. Soon, the rooftop transforms into a serene escape, as they find themselves playing nostalgic childhood games like "Kick the Can" and "Red Light, Green Light." But beneath the surface, all three of them are hiding a significant secret...