Trance

I actually thought it would turn out that the girl is in fact the succubus, but him starting to long for the demon girl and stopping to long for the actual girl she borrowed the face of made the story even better. And her coming back for him was the cherry on the cake! What's left to say is how I want to see them again some day...
And before I forget, fun fact: Like the boy in the story I am also capable of controlling my dreams. And I also banged some hot demon girls. And became the demon king...

A sexy succubus appears in front of you to have sex with you and your first reaction is to call the cops?
Come on, man. In Hentai, we all know you just embrace the situation!
Great ending though. It's nice to know that despite a year having gone by, that she still eventually went back to him. It was a nice ending.
I'm still half convinced she succubus is actually the girl he likes, mostly because of the part where she noticed his boner and didn't say anything about it...But I'm not sure anymore. Maybe a sequel can clear this up?

This really blew me away. Great stuff from Dagashi!

Fact: oddly enough Succubi love to visit me (in my dreams). Because I'm ace, and more interested in cuddles they don't have to indulge in fantasies - they just get snuggles and warmth

Dang Dagashi, I REALLY love this one. Succubi just so happen to be one of my weaknesses. I hope the protagonist can win the heart over the real girl though.
I noticed he was talking to her here and there.

Anyway, looking forward to that Trance Pt 2

Aww man, he gave up on his crush and yet Rem left him for a year? That's kinda rough.

As soon as I saw the sultry succubus on the first page, I knew this would be a favorite. After finishing, I was not disappointed. Need MOAR Monster Girls! (also, this should have that tag...)

Her name is "REM", as in "Rapid Eye Movement?"
Science joke in hentai? INSTANT FAVE!

"OM-NOM-NOM!!! ... 'Nuff Said.

Please more succubus stories!!