Yuu, who works in the local safety division, got a chance to become an undercover investigator due to a certain trigger. After infiltrating with a senior investigator, 3 months... living the daily life of an idol while secretly gathering evidence. As she gradually approaches the core, she gets caught and, to hide the evidence, hides drugs in her anus. Due to the drug's effect, Yuu feels intense pleasure and ends up subjected to sexual torture. The highlight this time is a 10-shot cum fest！！
