Kelly, a working-class girl, agrees to become a maid for her former lover, wealthy CEO Philip, in order to pay for her daughter’s medical bills. Despite past hurts, they rebuild their relationship, uncover her true identity as a long-lost heir, and ultimately reunite as a family.
Irene, a business titan, hides her identity from her son Eugene. To stay close to him, she becomes an intern at his startup and secretly helps him overcome crises until her true identity is revealed. Finally, the bond between mother and son deepens significantly.