hii the dddne manhwa recc anon here (lol) and the title is In The Castle: The Dragon's Erotic Education (LMFAO bear with me) basically it's abt a harem for this guy who's an appointed sex ed for the dragon prince (yeah it's lowkey crack bc the mc is also fcked in the head). story includes noncon, dubcon, slight beastiality, breeding, mpreg, extreme bdsm and sadism (there's also slight tentacle fucking at one point) :P idk if the manhwa would be your thing but the mls are four hot men who keep making the mc take it up the ass so it's so convenient, that's basically xtx with kvi!!