Park Jong Hyuk works as an assistant manger at a construction company. At night, he writes romance online novels under the pen name of "Mirinae." Yet, Park Jong Hyuk has never had a girlfriend.
Bang Ga Yeong works as an assistant manager in the general affairs department at a shoe company. Even though she is 34-years-old and single, she has never had a boyfriend in her life. One day, she receives a mysterious love letter.
Mi Na is a normal high school student who skatesboards to school every day and has an unacknowledged crush on family friend slash local tennis star Jong Min, who is her fellow student.
In the past, Jae Ho tried to commit suicide. He now works at company "Picnic Day." They go to the homes of the recently deceased and pack away their possessions.