Dad who secretly raised the wedding because he didn't want to cheat on another woman. The daughter "Yeri" feels sorry for her mother who knows this, and recommends that her mother enjoy her life with a new man, just like her father. However, the perfectly normal (?) mother cannot organize her relationship with her father, and the father begins to beg for him to let go. Yeri set up a "Mom's Boyfriend Making Project" to make her cheat on her mom and starts interviews with men who will cheat on her.
Cha Mi-suk
Hye-jeong, a lonely young girl who has drifted away from her family and avoids personal relationships, works in a factory, lives in a shared apartment, and leads an insipid and meaningless existence until one night she discovers that she has become a ghost.