The Rapeman Episode 1 introduces viewers to Keisuke Iwasaki, a high school teacher by day and a vigilante known as "The Rapeman" by night. Partnering with his uncle, a former surgeon, they run a business called "Rapeman Services," offering "revenge rape" as a form of justice for wronged clients. In this episode, they accept a case involving a woman who has betrayed her fiancé, leading Keisuke to execute their controversial form of retribution. The storyline delves into dark themes, exploring the moral ambiguities of their actions. The animation reflects the gritty and somber tone of the narrative, with character designs and settings that emphasize the serious nature of the content. Overall, The Rapeman Episode 1 presents a provocative and unsettling narrative that challenges viewers to contemplate complex ethical dilemmas.