Kim Hyuna, 21, a whinny yet cute and beautiful, cheerful, but a cry baby from time girl in her senior year in her degree. Despite being an abandon child, her life always bright up with color due to her owns personality and her grandmother. Yong Junhyung, 33, heir of Yong hotel, a confident yet attractive middle age man with everything within his control. He owned everything that every woman cares for.

Kim Hyuna and Yong Junhyung were a love bird despite the fact that they have a huge . He’s a very mature businessman and she’s a childish young girl. No one will ever think that Junhyung and Hyuna going to begin their marriage life after their 1.5 year relationship. Regardless of how many people wanted to stop Junhyung or dejects this marriage, yet, he still wanted to start his marriage life with Hyuna.

How will their marriage life turn into? What happened when the past come back to them? Jealousy, protectiveness, wariness, distrust, possessiveness came into their happy marriage life, how will they manage to face the future? Will their marriage turned out to be regret for both of them? Or will they build a stronger relationship? 

"You Complete me"