Lin Jiancheng owns an auto repair shop. Because he is kind and tolerant, his uncle's family and his older male cousin have treated him as free labor for years, asking him to repair cars, help them move, lend them his vehicle, and pay expenses upfront. Every time, they brush it off with the excuse that they are family. When his cousin Liu Zhihao gets married, he publicly singles Lin out in the family group chat, demanding that he provide his seven-seat business van as the main wedding car, advance a 12,000-yuan deposit, give a 10,000-yuan wedding gift, and provide three days of free transportation services. This time, Lin Jiancheng refuses. After his refusal, the family group chat erupts.