Modern girl Su Miaomiao is accidentally taken by Black and White Impermanence due to a soul-reaping mistake and transported into a novel. After losing her memory in a car accident, she mistakes Xie Siheng for her fiancé. Xie Siheng suffers from severe insomnia and an aversion to women, but discovers that Su Miaomiao is the only one who can soothe his affliction. The two naturally proceed to register their marriage. After the wedding, Su Miaomiao seems blessed with extraordinary good luck, while her mother-in-law shows her unconditional affection and support. As they overcome one crisis after another, the two gradually develop deep feelings for each other while healing one another. However, Su Miaomiao could regain her memories at any moment, putting their relationship to a tremendous test.