Time never stops. The clock is running. 

Yixing only has a few days just to realize the promise he made to Haeri.  

Will Yixing able to realize it?  

Or will Yixing failed to make it happen? 

"You'll never know how much you love a person until they're taken away from you..."

"Yixing, what are you doing?"

"I'm writing her a song, Mom."

"But she's already-"

"I said I'm writing her a song, Mom! Don't you see it?!"