Gu Jun-taek is the manager of Samcheon-ri Transport's Eastern Sales Office and the head of a large family. The day his daughter, Young-hee, starts working with him at Samcheonli Transport, he suffers the humiliation of being scolded by Executive Director Song in front of her. One day, Song asks Gu to set up a dance studio on the second floor of the office for his secret mistress. As a reward, Gu is promoted to chief of the welfare department. Meanwhile, Young-hee sees Kwon Oh-chul and Myeong-ok from the welfare department together in a coffee shop, and starts spreading rumors about their relationship…