Moon Byung-ho and Kim Yonghee die in a car crash,leaving the guard of their baby twins to their sisters. Yongsun was traveling and she didnt know. Byul struggles to take care of the baby boys on her own. Until the hurricane with black-hair comes.

Moonbyul suffocated her love for Solar during 7 years because she thought it was impossible. Until she got heartbroken and decided to change her life. 11 years later, Solar finally faces her former best friend again and there are many things that had been left unsaid. Both women got married and became mothers but there is still an emptiness in their souls. Does time heal everything, as it is said? Is it possible to mend what was shattered into a million pieces?