Nanhee is the lone daughter of the Hong family, with an elder brother who has a tendency towards sister obsession and holds a high rank in his school's social ladder, and a younger brother affiliated with a rival gang. One night, while retrieving her younger sibling from a bar, Nanhee inadvertently interrupts Ji Young Jin, the jjang of her brother's school. This chance encounter proves to be a turning point in Nanhee's life, as she becomes preoccupied with Jin and has to contend with gossip about their potential romance. How will she deal with this difficult situation?