After graduating from university, the heroine An Chenluo transmigrates to ancient times during her graduation party. When she wakes up, she finds herself living in the home of the hero, Su Lingche, though at the time she has never met him. But when they finally meet, they make a promise that will last forever. Gradually, Chenluo falls in love with Lingche. Yet she is destined to return to the modern world. Will she stay for Su Lingche? What will become of her?
