At the wedding venue, groom Lu Mingxuan is borrowed by female best friend Tian Sisi to rescue a crisis, abandoning bride Song Chutang who is waiting for the ceremony and whose father urgently needs surgery. A heartbroken Song Chutang sends a wedding-snatching invitation to male best friend Jiang Yu, who has silently watched over her for many years. Jiang Yu arrives as promised, replacing the groom to complete the wedding on the spot. After waking up to reality, Lu Mingxuan looks back to win her back, but the damage is already done. Song Chutang completely bids farewell to eight years of misplaced affection, running a two-way dash toward Jiang Yu, who has held a secret crush on her for seven years, and starts a brand-new life of being cherished.