Eun-Yi, a fashion magazine editor, struggles with relationships and colleagues. In-Ho, a former ballet dancer, seeks to become a musical choreographer after a career-ending accident. He moves in with Eun-Yi, initially pretending to be her younger brother, and becomes her "pet dog" Momo in exchange for a place to stay. As they grow closer, Eun-Yi's first love, Cha Woo-Sung, returns to her office, complicating her new arrangement with In-Ho.
You're My Pet
A mysterious stranger, In-Ho, appears in a large blue box on a rainy night, and Eun-Yi, feeling compelled, brings him into her apartment.
