Her parents died in a car accident when she was eight years old. She grew up living with her grandmother. She accidentally learned that her grandmother was terminally ill. For the expensive medical expenses, she sold herself out, but failed to save her grandmother's life. Frustrated, she chose to commit suicide. Unexpectedly, she had the chance to live again. This time, she must live her own wonderful life. However, she always didn't know what to do with him...