"Dad, I don't have money to pay for your treatment, but I still have my life!" Chen Shoushan is terminally ill. His eldest son only wants to seize the family property, while his intellectually disabled son, Chang'an, is willing to give his life to save him. Only when Shoushan sees Chang'an covered in grease, picking up leftover steamed buns from the ground, does he realize he has loved the wrong son all along! After five million yuan arrives in his account, he resolves to fight for justice for his foolish son and give him a home where he will never be thrown out again. But money can stay; a father cannot. "My foolish son, when Dad is gone, who will love you?"