Malicious Complaint Gangster

After losing her parents in an accident, Yi-su grew up lonely under her grandmother's care in a rural town. She works at the county office, constantly dealing with difficult and malicious complainants. Then one day, a mysterious man named Yang Tae-oh appears. From their first meeting, his vulgar words and strange charm completely unsettle her. When she finally asks who he is, his answer shocks her: "Me? I'm a gangster." Just who is this man?

(Source: MU)