Gu Yanchen earns 42,000 yuan a month and has handed his entire salary over to his wife, Su Yawen, for three years. Meanwhile, his mother, Shen Yufen, receives only 200 yuan a month. Living frugally to make ends meet, she eventually develops a stomach ulcer and is hospitalized. When Gu Yanchen checks the accounts, he discovers that his wife has secretly transferred more than 1.5 million yuan to her younger brother, Su Kai. During their confrontation, his mother repeatedly backs down to avoid making things worse. Gu Yanchen takes back his salary card, demands repayment of the money, and hires a lawyer to defend his rights. Su Kai goes from acting completely entitled to being forced to sign an installment repayment agreement. With the couple fundamentally disagreeing over what it means to be 'one family,' their marriage ends in divorce. Gu Yanchen finally begins managing his own money and taking proper care of his mother.