Yi Hua, an aged female doctor meets Ye Xiang who's injured and unconscious by accident. Out of doctors’ benevolence, she takes him back for treatment. However, Ye Xiang loses his memory due to injury. At the same time, he has a tendency of split personality, thus he becomes changeable, sometimes he's sweet but sometimes grumpy. Yi Hua took him to be a medicine boy, calling him "Yun Gui". When getting to know each other gradually, Yun Gui began to launch a fierce love offensive to Yi Hua.