Hong Yun has been friends with Ye Chan since elementary school, they are 18 years old, and they both dream of love. Ye Chan is in love with 20-year-old Ji Hyo once he confesses his feelings to her, but for her, he is just a friend. Hong Yun is single after breaking up with her ninth boyfriend. How will life treat these two friends, especially since a new handsome Hae Jin has appeared on the horizon showing interest in Hong Yun and Ye Chan also meets a beautiful girl?