Season 1

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.

Oh Moon-Sook has worked at a bank for the past 2 years. She struggles to get from her current contract position to a permanent position.

16 years ago, So-Yi went to her grandparents’ home in the country from Seoul. She made biting remarks to people, but in fact, she was in pain due to the absence of parents. She wrote an anthology with her classmate Jin-Hyun which she happens to revisit after becoming an English teacher.

Na In-Sook is in her 60's and she has devoted her life to her family. To make some extra money, she begins a part-time job cleaning up a billiard hall. There, she discovers her talent for billiards.

The story tells of a brave woman who fights to recovers her rights and overall discrimination on women in society.

Choi Kang-Soon works as an assistant manager at a company. She becomes a victim of a hidden camera which inspires her to fight against injustice.

Choi Soo-A makes the last meal for death-row convicts before they are executed. Kang Min-Joong is a death-row convict, but he is unaware of his dire circumstances due to his mental illness.