You're Lee Felix

Hwang Hyunjin and Lee Felix has been broke up 2 years ago because Felix got pregnant of Hyunjins child

Hyunjin now is living as a CEO and has the biggest and smooth company in the country,Meanwhile Felix just living as ordinary man with a child

One day,Hyunjin was sitting at his office doing some work, then his eyes suddenly looks at the window seeing the street,but something catch his attention,he saw Felix with his child walking together in the side-walk

"is that..?"