Baka na Imouto wo Rikou ni Suru no wa Ore no xx dake na Ken ni Tsuite

A narrative unfolds featuring a protagonist living alone, who encounters someone described as 's.' The character 's' expresses interest in intimacy, leading to a series of events where clothing is gradually removed. The protagonist experiences excitement in this situation, which escalates with discussions of sexual acts.

The story includes various explicit scenes involving the same female character, who is identified as the protagonist's younger sister. These scenes encompass a range of sexual activities, including oral and anal sex, as well as other explicit interactions. The content is presented in a Japanese voiceover and is censored, with no subtitles provided.