What does the mother-in-law mean by ordering her daughter-in-law to serve rice?

When a mother-in-law orders her daughter-in-law to serve dinner, she treats her daughter-in-law as a domestic slave. A daughter-in-law should not live in her mother-in-law's house. There has never been a law that requires a woman to live in her mother-in-law's house when she gets married. When you become a daughter-in-law, don't be silly, thinking that your husband's family will treat you like family. Come on, take your husband away, live independently and live freely.