On the day of their marriage registration, due to an urgent call for help from her longtime friend Chen Yang, Shen Yan left her fiancé Zhou Yu behind to rush to the rescue. Having accumulated five years of grievances, a disheartened Zhou Yu agreed on the spot to accept an overseas posting to Linchuan, abruptly shattering their relationship. After a process of emotional tug-of-war, breakup, and long individual growth, the two had shed their naivety by the time they reunited, finally letting go of the past with a sense of calm and, after reconciliation, heading toward their respective new lives.