Kim U Ju is the only son and fourth-generation heir of Myungsoondang, South Korea’s oldest bakery, founded 80 years ago. He is a talented marketing team leader and perfectionist, yet a logical narcissist determined to run the family business in his late father’s place. His professional relationship with Yoo Me Ri, a designer from a partner company, takes an unexpected turn, pulling them into a whirlwind situation that forces him to become her fake husband. Yoo Me Ri is a quirky and hot-tempered designer who seeks out a fake husband to protect the newlyweds' special prize of a top-class townhouse. She is a bride-to-be who, having experienced a series of hardships in her life, including a broken engagement due to her fiancé's infidelity and a fraudulent lease of her new home, proposes to Kim U Ju, who has the same name as her ex-fiancé, in order to protect the newlywed home she won after the breakup.