Park Kang is attending an Award Moment and winning The Best Nomination actor.
To celebrate it, Park Kang ask Jo Yoon, his private manager to drink.
Soon when they decided to come home after Park Kang got drunk enough, they are never knew that on those moment is a Christmast Eve.
Some miracle happened on Park Kang Lifes.
He wake up in the morning in different condition and different moment.
He's already married with his ex - girlfriend, named So Hyun and have twin kids, Ro Hee and Ro Haa.
Park Kang proffesion also changed just become an usual actor which never be a dominant act.
His wife So Hyun, must do the hardwork alone to paid for their needs.
Park Kang felt so guilty about it. So, he decide to accept his bestfriend offer to be his friend private manager.
It's better than do nothing.
Slowly but sure, His bestfriend trust is raise up to him.
So, at some moment, Park Kang is chosen to played some act with his bestfriend Jo Yoon.
From every moment that he has been through, Park Kang get some precious lesson that " His Only Happy Life " is just when he can be together with his wife So Hyun and their kids Ro Hee and Ro Haa.
Time by time passing by. And the taxi which was made him feel the miracle that happen to him, showing up once more to return Park Kang to his original lifes.
Park Kang can do anything because that was not his arrangement.