Jiang Nianchu, who makes a living running a street market stall, raises her daughter Jiang Manman alone. When she suddenly faints, her daughter follows her mother's instructions, opens the old photo frame, and dials a mysterious number, interrupting the bigwig Pei Xuchuan's important signing. It turns out that seven years ago, Jiang Nianchu anonymously donated hematopoietic stem cells to save Pei Xuchuan, but Han Mingshu forged evidence to drive a wedge between them. Pregnant, she quietly walked away. As the truth is gradually uncovered, Pei Xuchuan, who has been kept in the dark for years, begins his delayed path of redemption. Unfettered by grace, Jiang Nianchu holds fast to herself and her bottom line, slowly welcoming her own new beginning amidst tangled entanglements.