@0ujoDaniko i have some answers for you:
1) there is a point in buying a house after getting a wife it helps you rank up the wife faster
2) I think she smells them and keep them in your house
3) she probably puts eggs and spices
4) if you go into skills after you get your wife to make "lunch" it adds 50 bonus to watering, running, and harvesting but not selling
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