1Episode 1
Min Jae lives with his mother in Seoul. He now has an issue: his mother's affair with somebody else.
2Episode 2
Min Jae takes expensive math tutorials and visits Daegu to find out the truth about her mother's travels.
3Episode 3
Seo Yeon goes out for dinner with her mother and her mother's boyfriend. Min Jae quits his tutoring.
4Episode 4
Min Jae and Seo Yeon share and talk about the pain they suffer. The two comfort each other in strife.