Kim Junsu was on top of the world, rich, successful and very handsome. His perfect world built on money, power and beautiful women, suddenly falls apart when his ex-wife Heebon dies, leaving him a full time father of a beautiful but under loved 4 year old, Ihnwan. A child he had turned his back on many, many years ago, simply because Heebon had said that he was not the father. Now he had to turn from billionaire tycoon to understanding father. And this could not have come at a worse time; his company is in the middle of a huge deal, a deal that needed his full attention. So he did the only reasonable thing, he hired a nanny.

Jang Ri In  was down on her luck, no money, no job, and no place to live. Her last hope an ad for a stay in nanny. She didn't know what to expect when she walked into Kim towers. Certainly not to be offered a job by Mr. Kim himself. In a matter of days Ri In had Ihnwan, cleaning up after herself, singing, drawing and doing everything other little boy did. Ihnwan no longer acted as if he were a doll. He even started calling Junsu, daddy, pleasing him immensely. Ri In had done everything Junsu had hoped she would, and then some. She made him think of something he had refused to even dream about, she made him think of a family. Could it be? Was the old tycoon in love with a nanny?