Yoochun is an artist caged within himself.  Yunho is full of life and dance; he wants to bring laughter to Yoochun's world. 

He looked at the paper between his fingers; Yoochun was barely legible in Changmin’s messy scrawl underneath the phone number. 

It’s already far too late by the time he realizes that he’s falling; he’s already half-way in love, light years beyond insane, and two seconds away from a meltdown.