Salon de Seoul.

Su-jin, who works as a karaoke helper at an entertainment district in Seoul and a press office salon, asks Ji-yeon, a college student who lives with her, to work for her for one day when her father suddenly asks her to meet her. Su-jin meets Ji-yeon's boyfriend, Seung-yeong, in liberal arts class at her school, where Ji-yeon took her place, and falls for her.