Choi Hyeji is just like any ordinary teen girls, except for the fact that she only had a few months to live. An unexpected encounter at a certain shop with Oh Sehun became the starting of their friendship. But it all falls apart when Sehun confessed his own feelings towards her. The worst part is, Hyeji too fall in love with him. Will their love have a happy ending, just like in a fairytale?