A certain housewife's secret money earner

An ordinary couple living in a certain town.
The husband works for his wife (the main character), and the wife works as a housewife every day to protect her household budget.
The wife, who has become accustomed to housework, starts various activities in her spare time.
Doing a part-time job to help your household
Have a cup of tea with a friend at a coffee shop
Take a walk to a nearby park ...
It seems that a normal married life will continue as it is ...?