The story will have romantic development between a human protagonist and monster girls. Particular Demons and Beastkin may also be included. Also Couple Growth tag.
Has a Female Lead of a Human-like Race/Creature in fantasy/isekai here
Has a Female Lead Beastkin in fantasy/isekai here
Protagonist becomes a non-human in fantasy/isekai here
Has a Female Lead of a Human-like Race/Creature in Modern Setting on Earth here
Additional (currently no MyAnimeList page):
-(Manhwa/2024) Die Melusine
Special Additions:
-(Korean Web Novel/2025) I’m a Novice Farrier, but the Centaur Ladies are Obsessed with Me
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Anilist Sync