Based on the popular manga, Oh Ha Ni is a clumsy student who falls for the perfectionist, Baek Seung Jo. However, Seung Jo is indifferent towards her and rejects her love. When Ha Ni's house collapses, she and her father moves into his long-time friend's house. It turns out that Seung Jo is the friend's son and Ha Ni is given the opportunity to be near the guy she loves. Will she be able to move Seung Jo's heart?
Kim Hyun Joong as Baek Seung Jo
Jung So Min as Oh Ha Ni
Lee Tae Sung as Bong Joon Gu
Lee Si Young as Yoon He Ra