Yu, who works in the Community Safety Division, gets a chance to become an undercover investigator, something she has always dreamed of. She goes undercover with a senior investigator and for three months... Yu continues to live her daily life as an idol while secretly gathering evidence. As she gradually gets closer to the core of the matter, she is discovered and caught, and in order to hide the evidence, Yu hides a sexual object in her anus. Due to the effects of the drug, Yu becomes overly aroused and is subjected to sexual torture. The highlight of this episode is, without a doubt, 10 consecutive bukkakes!!