Jiyong is an average guy that working at the lamborghini showroom, if only he's not that clumsy he might already on a different level, what he need is someone to keep his focus straight, not another distraction.

Chaerin is working as a daycare teacher, she always looks calm and classy in whatever she do, lot of time people are being pulled into her without them noticing it. She had her own way on handling things with an unlimited patience.

Jiyong and Bom had dated for over 5 years, until Jiyong went to army and suddenly Bom told him to break up, and the next thing he knew, Bom is pregnant. Ever since, those two keep having a constant bickering.

Hyejung is the big clingy noona, she is on the process of divorced with his husband, Tablo. Hyejung takes their only daughter Haru with her, her new hobby is to annoyed Jiyong 24/7, with the fact that now she moved to Jiyong's house, makes Jiyong's life hundred time harder.

Tablo is Jiyong senior in high school, he knew him for years and they've been closed every since. Jiyong is the one that introduced him to Hyejung, he thought that he can handle his sister well, but it all proven to be wrong, Hyejung is a total dominant.

Jiyong's bestfriend, or former. Jiyong trusted him too much with everything, including his girlfriend at that time, he told me to take care of her for him, but who knew he would double crossed him. Strangely Jiyong can't never hate him eventho their relationship is now  lukewarm.