After losing her father Go Eun-sung's stepmother kicks her and her autistic brother out of the house. Shortly after her brother is kidnapped. Eun-sung now has to look for her brother while also trying to find a job in order to survive.

Tragedy strikes Eun-seong (Han Hyo-Joo) when her father suddenly dies and her brother goes missing. Then, by accident, good fortune arrives on Eun-seong's doorsteps when her kindness to an old woman yields the promise she'll inherits a vast fortune. Woo-han Seon (Lee Seung-Ki) is an arrogant young heir to this vast fortune. He has no idea about the value of money as he was spoiled by his wealthy grandmother and mother. One day, Woo-han's grandmother (Ban Hyo-Jung) delivers a wake-up call, she will give all of her fortune to Eun-seong.—asianwiki