In a world where omegas are valued for their fertility, Sun Baohai, an infertile omega, faces abandonment and a lonely death. But fate has a twisted sense of humor. He wakes up in a new body, in a new time, as a 'stepmother' to four neglected children. With a mysterious 'Happy Family System' guiding him, can he turn a dilapidated house and a broken family into a haven of happiness, or will the harsh realities of this new life prove too much?