Five years ago, Mu Yu was set up and accidentally slept with An Xiaorong. After a car accident, An Xiaorong selectively loses her memory. Mu Yu is then arranged to marry into the Chu family, but Chu Qingrou learns about the Mu family's curse that brings misfortune to their wives and considers calling off the marriage. By coincidence, she meets someone who looks just like her, An Xiaorong. The Chu family offers to treat An Xiaorong's illness on the condition that she substitutes for Chu Qingrou. During their time together, An Xiaorong's cheerful personality attracts Mu Yu, and it is through Xia Lan's provocations that Mu Yu begins to understand his true feelings. Three months later, An Xiaorong is still alive, and Chu Qingrou pretends to be the woman Mu Yu slept with five years ago, threatening An Xiaorong to leave. In the end, Mu Yu realizes that An Xiaorong is the person from five years ago, and they finally open up to each other.