Hopefully into an anime so we get the smut
korean movies are very explicit and sexual when they want to be....just look at The Treacherous or Agasshi/The Handmaiden (also all those low budget softcore porno movies they like to make lol...altho Green Chair is good and i suggest looking it up). even if u got a hentai anime of this they'd still censor the dicks lol and it wouldnt be nearly as erotic as it could be with cinematic lighting (not that either of those will ever happen lol but popular webtoons have been made into films or kdramas but thats rare and those have to be HUGE hits to get the movie treatment cause of the expense involved)
this should be adapted into a movie (not hollywood, a good Korean director)