Serim's Iron Rule

Han Se-rim is feared by everyone due to rumors that she is a gangster.Kang Seung-woo, a "perfect guy," joins a mentor-mentee program with her, and as always, he tries to get close to her to perform perfectly.But... who is this kid? A perilous romance between Han Se-rim, who acts as if there is no tomorrow, and Kang Seung-woo, who meticulously plans his life.