They are demon. Eve is just an anomaly however because shes the demon of someone who can see them so she can interact and learn. which would've made her more dangerous if Tarou was some evil guy
I still like Ririsu the best. Not that I dislike Ebino. shes a good girl.
In a non Bias way from my experience from the vast majority of Manga,anime and lightnovel Harem. Ririsu has more chance to end up with Tarou at the end. Not because it is what I want but because that's the usual way it...
@Flupser it's a manga.. sometime people shoots laser. sometime a normal guy with no talent or anything going for him becomes the center of a harem of beautiful girls. Some girl that cant dress by herself is in the bottom of the list of weird things that could happen. Dont try to argue with it