Influencer Jenny plans a birthday livestream surprise for her boyfriend, only to catch him in contact with Chloe, the adopted daughter of a wealthy family. When the livestream exposes their affair, Jenny is beaten, banned from streaming, and targeted by the powerful family. Just when she is in danger, she is rescued by Lucas, heir to the Sterling Group. Lucas is stunned by how much Jenny resembles Vivian, his childhood sweetheart and betrothed whom he has spent twenty years searching for. Using his family's relentless pressure to marry as an excuse, he proposes a one-year contract marriage with Jenny. As they begin living together and facing the schemes of the wealthy family, their contractual relationship slowly turns into genuine love. But Jenny is hiding the biggest secret of all: she is actually Vivian Wentworth, the long-lost true heiress who disappeared years ago.