Na-mi
Na-mi and Sun-woo, the outcasts in school, plan to commit suicide instead of going to the school trip. On the moment of success, they find out that the girl, Chae-lin, who made their lives miserable is living a new happy life in Seoul. So, they decide to make revenge before ending their lives. However, when they finally spot Chae-lin, they see a good-hearted girl in front of them which makes their plans go awry.
Ji-soo
Suna, Jisu, and Bomi, who contain different stories, get into a car accident on a last-minute trip to visit the graveyard of Jisu’s parents. The three spend the night in an unfamiliar place and learn about each other’s secrets.
Student
Kim Hyun is a best-selling author who has been experiencing a writer's block for seven years. He keeps an amicable relationship with his ex-wife Mi-ae, who is now dating his best friend and publisher, as they take care of their oversensitive teenage son. To get back on his feet with his career, he decides to work on a new novel with an aspiring writer, his student, Yoo-jin, only to get his life more complicated when Yoo-jin comes out as gay and confesses his love for him.
Seowoo
Seo-woo revisits the convenience store she worked for until recently. The store manager who owes her unpaid wages is nowhere to be found. There comes Wal, a new part time worker who speaks in poor Korean and awkwardly greets Seo-woo.
Seon-woo
An aspiring singer Sun-deok is visited by her mother, whom she hasn’t spoken to in years. The abrupt encounter leads to the news of her younger sister Yuri, who had vanished with their savings. The mother-daughter team is now hunting for the missing girl and their money, poking around in Itaewon, the international hub of Seoul. Little do they know that soon they will be faced with Yuri’s unlikely secrets.
Ju-yeon
Mother and daughter who do not do menstruation use a pregnancy test machine while hiding each other. The result of the tester is two lines. Mother and daughter try to tell their test results to each opponent.