This video is a game rip of the game "Imouto Kairaku Ochi~Onii-channi Muriyari Hameraretekara~" by studio CourregesAce released in October 2018. The hentai tells the story of the complex relationship between a brother and sister.

One day, the older brother, who was head over heels in love with his little sister, overheard her phone conversation. She was talking to some man and telling him how she envisioned her future life with him. The brother was in despair; he had to somehow stop this sinful relationship, he had to isolate his sister from this dirty pervert, he had to save her and lock her at home. The brother took advantage of the situation during summer vacation when everyone went abroad. He began to systematically and mercilessly discipline his depraved little sister...