Min-Ho (Lee Sun-Goo) works as a counselor at a psychology counseling center, which is run by the government. He gets tired of his daily life and listening to the complaint of his clients. The stress that he feels affects his relationship with other people including his family. At his apartment, which he just moved into, he finds post-it notes written by the former occupant of the apartment. The notes are written explanations about the apartment. He learns that the former owner is a woman. Min-Ho wants to meet her.