Kin, the single daughter of a night club woman, lives in a slum. She is a brave, smart, cute, kind and flexible girl. She makes a living with a variety of what she calls business: begging, gambling and so on. One day, while doing her business as gambling leader, she is caught by Pudith, a policeman. Kin and Pudith are like enemies until the police hires her to spy a group of people selling drugs. She is trained and their relationship grows unconsciously.