He Suihe accidentally catches her fiancé having an affair with her younger sister, while her parents secretly arrange to exchange her marriage. Refusing to let her family control her life, she meets the honest and dependable Lu Cheng'an, and the two independently decide to marry. After their wedding, Suihe works hard to build a new life, but her younger sister from her maiden family keeps causing trouble. Through family conflicts and various upheavals, she remains true to herself and supports Lu Cheng'an through thick and thin, ultimately forging a happy life of their own.