Lee Yoori, an employee of the EG Department Store HR team, and Lee Yool, the youngest daughter of the EG Group President, fell from the 10th-floor building. Lee Yoori, surprised, woke up in Lee Yool’s body. But Lee Yoori believes that one day their bodies will return to normal. Lee Yool lived her life as a daughter of a conglomerate. But the thing is, Lee Yool has a fiance and they’re going to be married soon! Will Lee Yoori successfully overcome all obstacles as a daughter of a millionaire?!