[Shirabe Shiki] kaikan kikan: kisei gata [AI Translation]

A parasitic organism that invades reproductive organs and creates intense pleasure zones targets a tomboyish protagonist, turning her everyday life into a secret battle. As she navigates school meals, family gatherings, and a sports club, the parasite's neural connections intensify, promising escalating pleasure and danger. The story hinges on the tension between her hidden affliction and the growing, unstoppable influence of the parasite.