After the Northwest Army captures the enemy king, the Empress Dowager rewards her soldiers lavishly, signaling her firm control. However, the host learns her best friend Laura has died mysteriously in the 21st century, prompting her urgent desire to return and investigate. To go back, she must first accept a new mission: become the true Xavier heiress by marrying Steve Hart, the ruthless cousin of Mark Hart, Laura's late husband. Accepting this challenge, she is abruptly transported back to an unexpected wedding scene where she is already poised to marry Steve, facing immediate pressure to adapt and win his love.