Kim Sung-min

The awkward, distant, and wounded three sisters gather at their hometown for their father's birthday. However, on the day of the party, there is a big mess because of their little brother Jin-seob's abnormal behavior, and the past of the three sisters slowly reveals.

For the final birthday party of the eldest son, a family gathers in the house to have a plan with a bus..... Mother asks each of them to stay in his room for 10 minutes. Each person reveals personal wounds and secrets.