Responses
The first time I saw that in mahnwa I got weirded out hahahaha but few weeks after that I learned that in Korea same sex marriage it's not legal yet so the only way to get someone to be legally your family is adoption, so they use that to make thing official and it's a way of securing patrimony and all the legal effects that being family has.

man, sorry i have very strong disgust over incest, it was hot at first but when i realized that ho was listed as child/son in that family certificate and they started the daddy/appa idea because of that...i was legit pulling out my hair out of disgust, cringe, and idk maybe shame lmaoooo but anyway...i was turned on again after seeing that fucking panty garter or whatever that called lolol