Su Wanqing, the daughter of a fallen family, is forced to marry Gu Tingchen, a cold and ruthless tycoon. Behind the marriage, she is merely a substitute for Su Wanrou, Gu Tingchen’s beloved first love. Yet in this seemingly unequal marriage, Su Wanqing uses her tenderness and resilience to warm Gu Tingchen’s icy heart, gradually freeing herself from the shadow of being a stand-in. But this is no simple love story. Behind it lie the secret of the Su family’s downfall, the power struggle engulfing the Gu family, and a conspiracy buried deep in the past. Amid their tangled love and hatred, the two face every darkness that seeks to destroy them and ultimately find happiness together.