Getting married requires a bride price, requires a house.
If there's no bride price, no house, the girl's parents won't let her marry Wang Fugui.
Wang Fugui just graduated a few years ago, and his little salary was spent on coaxing his girlfriend, leaving him absolutely broke.
Widow Wang's side has some income from the fields and the Host's salary, but it's still not enough for the bride price, not to mention buying a house.
Thus, the Host became a medicine man.
And an expensive one at that.
An expensive medicine man that could bring Wang Fugui thirty thousand a month.
The Host was unaware, quitting her job at the restaurant to return home, continuing to slave away for the Wang family. Sometimes her body reacts and she feels horribly sick, Widow Wang scolds her, calling her pretentious and lazy.
