To save her family, Su Wanwan is forced to take her twin sister's place and marry Lu Tingxiao, the ruthless business tycoon of legend. On their wedding night, he makes her sign a “substitute contract,” turning her into her sister's shadow. She intends to play her part diligently, but after an accident, she actually loses her memory! Her memories rewind to when she was eighteen, and she becomes a clingy, tearful little handful who sees the CEO as her only support. Lu Tingxiao plans to watch from the sidelines, but her innocent yet sly behavior after losing her memory leaves him completely flustered. When the contract expires, he presents her with divorce papers, but his delicate young wife pins him against the wall, eyes red with tears: “Hubby, don't you want me anymore?” Later, when the queen of secret identities returns with her memories restored, Mr. Lu finally realizes that he is the one hopelessly caught in love, unable to break free. (Early on: an amnesiac little handful vs. a CEO whose words say one thing while his heart says another; later: the queen of secret identities vs. a loyal puppy chasing his wife through the fire.)
