One is a ruffian policeman who has worked as an undercover agent, and the other is a beautiful forensic doctor who is upright, cool, and arrogant. The two met because of a case, and they became very popular. They are good partners at work. Will they also be so compatible in life? When the usually shameless and domineering policeman who chases people and is even more shameless knocks down the arrogant and upright elite who usually go home and are the arrogant queen forensic doctor, then from now on, who will listen to whom?