Ailee found out she has cancer and was in middle of High School.  

When her sister IU comes home she takes Ailee to places they always wanted. 

But what if Ailee meets the most amazing guy? And tries to explain whats wrong? 

And when IU meets her lover, would she forget about her own sister? How long can Ailee,

Make it? Would Ailee finish her life challenges in time before death?

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