The salted fish life of the door-to-door son-in-law

I have been reborn many times, and each time I have a different career, there are doctors, teachers, hackers, directors, architects, musicians, martial artists, novelists, cartoonists, etc. Godfather, but I swear this is my first time being an intruder-in-law. This is a very challenging profession, so I'm going to turn into a salted fish, eat and die! ...