Artist Tae-yi always gets compared to his best friend, Eun-woo. One day, Tae-yi’s girlfriend commits a sudden suicide. Tae-yi starts finding the truth of her death and discovers that the death is related to Eun-woo’ s secret box!

The story of Eun-Jung, a 25-year-old freshman struggling with unstable employment and livelihood issues, becoming meaningful to each other as she intertwines with Do-Hee, a 17-year-old high school student with a wound.