Meet Kim Sunggyu, 26 years old, single, and has a.........CHILD?! Then comes in Nam Woohyun the CEO of the Nuclear Entertainment, one of the top entertaiment companies in Seoul. There is Kim Myungsoo the child star who is now a model and actor, Lee Sungyeol who runs a day care along with Lee Sungjong, and Jang Dongwoo who has a mysterious past with Lee Howon.

Sunggyu is looking for a new job for personal reasons, and finds one at Nuclear Entertainment. But what he doesn't know is he will be working soley for Nam Woohyun, the CEO of the company. Now, lets read what happens when all of these lives get mixed up together creating a bomb that will either ruin their lives or give a whole new beginning to their once empty lives.