After having been dating for two years, Hansol, who promised to marry Kim Sa-wi, decides to introduce her to her parents at home. There is a father who loves so much at home, and an older sister named Rose Jin, a stepmother whose love is growing differently. Although they love each other in different ways, Hansol loves her family. Sometimes, while meeting with his brother outside, when love bursts as if laughter bursts, Hansol, who cannot stand, discovers the appearance of his stepmother and his lover that night.