Yeon-hee
Violent father Moo-jin, whose family is everything. Mother So-yeon left because she couldn't stand the violence.
Hoon, who loves both his father and mother, is forced to make a choice and leaves, but eventually remains alone and enters his world.
High School Student
Grieving the loss of a best friend she couldn't protect, an ex-bodyguard sets out to fulfill her dear friend's last wish: sweet revenge.
Yi-wol, living in a convent, aims to win a prize at a concours to study abroad and escape. She befriends Jung-yeon, who shares the desire to leave their village, and their bond deepens into something more. However, Yi-wol’s feelings of inadequacy lead to an argument.
Yong-hye
At his mother's 70th birthday party, Yong-nam runs into Eui-joo, who rejected him in college. When the city is engulfed in toxic gas from a terrorist attack, the two must find a way to escape using all the techniques they learned in their college rock climbing club.
Su-yeon
A gym teacher and his female student look for her missing friend. But as they investigate, they find that her disappearance is a part of a larger conspiracy.