A new plot-driven work starring actress Wang Qian: Too scared to tell her parents about her first period, she asks her older brother for help with an examination, only to be deflowered and vigorously taken.

The story revolves around a young girl named Wang Qian who experiences her first menstruation. Afraid to tell her parents, she seeks help from her brother. During the examination, the brother gradually loses control, violently assaulting his sister, forcibly deflowering her, and violently penetrating her until he ejaculates inside her. The film centers on the taboo relationship between the siblings, featuring intense plot conflict and adult elements.