Shuri, an elite investigator with the highest arrest rate, usually undercovers with soap for bad guys to collect information. Due to his mission, Shuri, who is working, is suggested to quit his job as an investigator when he is engaged to his colleague's boyfriend. Meanwhile, after receiving information that a patch-type aphrodisiac that is more than twice as effective as before will be distributed, Shuri decides to resign after decorating the final beauty of this project.