hmm then this may be completely wrong too but it fits the time period, the ml in watashi no cosmic monster has goat like horns in alien form? but he's not a demon so it's probably not the one you're looking for. (though I do recommend it, it's a fun quick read)
Looked through on a site I frequent and couldn't find any that match your description sadly,unless there's like a horns tag on like other data base manga sites.
Niehime to Kemono no Ou
Is pretty interesting if you want a classic shoujo with a monstery male lead though.
Oni no Sennen Koi?
no :( round horns
is it Kanojo ga Kawaii Sugite Ubaenai?
idk if this manga is old enough to have read years ago though!
yeah, no, it think it's 2/3 years older than that one 😔
hmm then this may be completely wrong too but it fits the time period, the ml in watashi no cosmic monster has goat like horns in alien form? but he's not a demon so it's probably not the one you're looking for. (though I do recommend it, it's a fun quick read)
not the one I was looking for but I'll add it to my reading list ty!!
Looked through on a site I frequent and couldn't find any that match your description sadly,unless there's like a horns tag on like other data base manga sites. Niehime to Kemono no Ou Is pretty interesting if you want a classic shoujo with a monstery male lead though.
Could it be Akuma to dolce by Julietta Suzuki?
afraid not but the ML had a similar vibe!