Following a family tragedy, Shangguan Chu Xia loses her memory and gets adopted. Her new name is Feng Dong Dong. A chance encounter with Yun Su leads to a surprising revelation about her origin and past. In order to get to the bottom of what happened, she transforms herself into a hot maid managing the Shangguan family. She also joins hands with her contract fiancé, Yun Su, in an attempt to bring the culprit to justice.
Demon Lord, Lin Fangzun, annihilated the whole family of Zhao Lu on her wedding day. To save everybody, Zhao Lu went back 300 years and tried to kill Lin Fangzun to avoid that previous tragedy. When she just arrived there, she accidentally saved Mu Ting who was held in captivity. So trying to requiting favors, Mu Ting helped Zhao Lu to find Lin Fangzun. However, it turned out Mu Ting was that Demon Lord...