The female protagonist, Shen Zhiwei, is the true heiress of the Shen family. On the day of her wedding, she is framed by her stepmother, fake heiress, and fiancé, plunging into the sea to her death. Before dying, she triggers the "Sevenfold Rewind," returning to 7 days before the wedding with every death. She fails the first 6 times, but on the 7th time, she decides not to clash head-on anymore. Instead, she hides her secret identities, step by step uncovering the truth behind her mother's death, the Shen family's genetic experiments, and the true and fake heiress baby-switch case. However, she quickly discovers that someone else also knows about her rewinds and is laying traps in advance to kill her.