It’s summer, and the whole Kim family has gathered in Daegu for the ancestral rites. This includes Seong-jin, the eldest grandson of the family, whose father has taken on the family business: a tofu factory. After the rites, family tensions start to rise and Seong-jin drops the bombshell that he won’t be taking on the family business.
Han Jung-woo, a pilot with top-class skills, is flying high and even appears on a famous TV show. But everything comes crashing down when a careless mistake causes him to lose everything, even his job. Blacklisted in the industry, no airline is willing to hire him. Desperate with no other choice, Han Jung-woo transforms completely into his younger sister's identity and succeeds in landing a job as a pilot.