Jian Qiang and Jia Yun have three children, eldest daughter Tian Xi, second son Tian Wei, and the youngest son Tian Cai. Tian Cai is an intellectually disabled 21-year-old who sees a different world from his family, inadvertently creating stressful situations at home. When Tian Cai was diagnosed with intellectual disability, Jia Yun's world crashed, but fortunately Jian Qiang was there to be her pillar of support. The children are now grown up, and they thought the toughest period is over, but unbeknownst to them, the biggest crisis their family will face is yet to come...