Mr. Thang and Mrs. Loi's three children face complex challenges: affairs, divorce demands, and family discord, all to reveal the lessons of love and sacrifice in marriage.

Mr. Thang and Mrs. Loi have three children: Quang, the eldest son, Vy, the second daughter, and Minh, the youngest son. They are very proud of their children, always considering their family to be a role model, very harmonious and complete. However, life is always full of secrets and surprises. While Duy Quang and Ha Vy are happy, Vy returns to work and leaves their child with Mrs. Loi, causing some discord in the mother-in-law and daughter-in-law relationship. But things get even more complicated when Ha Vy meets her ex-boyfriend from high school. His soon-to-be wife happens to be the person Duy Quang used to have an affair with. Huong and Hieu face a different challenge. Busy with work, they have no time to care for their child which causes their child to fall into depression. Hieu has an affair to raise funds for construction investment. Then Hieu faces the risk of imprisonment due to a project mishap. Minh and Thu face the pressure of being parents at a young and playful age. Out of impulsiveness and personal pride, they demand divorce. This is the story and lesson about love, happiness, trust, and sacrifices in marriage. These are the things that help Mr. Thang and Mrs. Loi's children rediscover the happiness that they seemed to have lost.