When her identity as the biological daughter who was switched at birth is exposed, Zheng Xunjia is cruelly driven out of her adoptive parents' home. Her bodyguard, Li Feng, steps forward and enters into a contractual marriage with her. The two leave their wealthy life behind and move into a rented apartment, determined to stay together. Through their modest days, they support and heal each other. Zheng Xunjia works hard, becomes a fashion influencer, and starts her own business to increase her income. Li Feng works just as diligently, founding an errand-running platform that steadily grows into a successful enterprise. The fake heiress, Zheng Yunshu, and her fiancé grow jealous and repeatedly scheme to undermine them. Together, the couple overcome every obstacle, build their wealth through hard work, and move into a new home to begin a fresh life. Meanwhile, Li Feng's mysterious background conceals an even greater opportunity.