Luna Zhou flees domestic abuse with Mia Qiao, meets Tyrone Lu and his adopted son Ethan Lu. Luna carries Tyrone's quadruplets. Tyrone protects her, their affection grows. Ethan loves Mia, who showed him kindness. Despite family harassment and outside judgment, Tyrone clears obstacles for Luna, Ethan breaks barriers for Mia. Mother and daughter marry father and son. The four babies are born, two love stories reach a happy ending.