Three young, renowned officers participated in a joint-operation between their respective unit and 19 MOA ST., which is a government organization that specializes in special cases regarding undercover operations.
Following the sudden, tragic death of a female University student, whose father is the President of the Board of Healthcare in South Korea, the case went through general review and straight into the special cases as a result of the demanding action from the family to investigate.
Officers Choi Soobin, Kang Taehyun, and Huening Kai went undercover at the University in order to narrow down the perpetrator, meeting the complicated challenges and concerns that university students often experience. Not much older than older students, the three learn valuable lessons in how to adjust to their new life under new identities.
While they investigate, they also must build a real character. This part can be very difficult for those who get easily emotionally attached to the relationships they establish. Sometimes they must take it further, and acknowledge that when it's over they must cut ties immediately. Well, this was until this case closed.
They valuable learn lessons from those they choose to listen to. Any good officer would know.