After the disband mayhem, Jaejoong attempts for a retreat at a family friend's home in Vancouver, Canada. Jaejoong thought North America is a satellite far enough from everything, except he is confronted with an acquaintance from the past - the original author of TVXQ's song Wasurenaide. Through her, Jaejoong finds solace, only to discover her boyfriend is Yunho. 

Yunho has a secret: he's in love with their young and aloof stylist, Renée. Renée has a secret: despite how young she looks, she already has a son. Changmin also has a secret: even though he's the youngest, he's already married. All their secrets are tied to each other. But how?

Changmin is known as the ace student, but he hasn't been able to keep up with that title, especially after TVXQ's disband. Finding himself failing advanced chemistry, Changmin is assigned a tutor. Rilie is the top student, living a low-key life and highly opinionated about celebrities. Except Changmin proves her wrong, and she finds herself inevitably charmed by Changmin. That is, until Yunho stepped into the picture.