Mark Tuan is the wealthy and very strict young CEO of Tuan CORP. His life seems perfect from the outside, Money, successful, girl and business on the rise. But there is more than the eye can meet. Mark’s past ex boyfriend. What can he do when he still love his ex and that prevent him from meet new person.

What will happen when in his life appears a bubble and sweet boy who happen to be his secretary. Park Jinyoung. What happen when Park Jinyoung confess to Mark Tuan ? Will he allows someone inside or will he shut jinyoung down because he feeling for he ex boyfriend?