I guess a spin off of sorts from the mafia AU, but not really? If you're a person of culture, you probably know already based on the title that this is inspired by the series "the ways of the househusband," and if you don't know the series already, here's a quick run down:

The leader of one of the most powerful Yakuza groups in Japan, one who was able to take on a whole gang and defeat them barehanded, suddenly vanished. Not even his own group knew what happened to him.

Where did he vanish to?

He left to marry a woman and become a househusband.

.....that's kind of all there is. The story is a comedy so there isn't much plot, but we see the guy do a bunch of classic househusband stuff and take care of the place, but does so in a Yakuza-leader-fashion.

Anyways, the prompt can go any way. Your character can be the househusband, or it can be their crush. There can be a serious plot, or it can be like the actual series and doesn't follow a specific plot but instead multiple issues at a time. Either way, enjoy some fluff.