Choi Jung-moon

15-year-old Young-sun, abandoned by her adoptive parents and left with nowhere to go, temporarily stays at the home of Sua, whom she met as a tennis training partner. Young-sun, wanting to stay at Sua's house for a long time, tries hard to become part of the family, but Sua and her family find Young-sun burdensome.

Suna, Jisu, and Bomi, who contain different stories, get into a car accident on a last-minute trip to visit the graveyard of Jisu’s parents. The three spend the night in an unfamiliar place and learn about each other’s secrets.