After a Marriage Swap, I Struck It Rich in a Farming Novel

Weird characters, a weak and incompetent mother-in-law who only cries when something happens, a male protagonist who stays at home all day long when she catches a cold and even takes food to bed to eat, and the almighty dandelion, which can cure this and that. The female protagonist goes up the mountain to collect herbs, sells meals at the school, and makes yogurt for rich people. She is so busy all day long that she has to cook for the couple. The male protagonist makes clothes and quilts at home every day. The author also keeps emphasizing that the male protagonist's mother is good to the female protagonist and treats her sincerely, but does not describe a specific thing that is good to the female protagonist. The money earned by the male protagonist from copying books is given to the female protagonist, saying that it is used to help her support the family. She deserves to eat this soft meal, but the female protagonist is very happy and wants to save it for the male protagonist to study. Oops, I'll go, I just watched it for a while and there are countless flaws, so I gave up.