It's that thing where you know you shouldn't be excited but you are, right? The demo is basically a sketch on a napkin, the UI feels like placeholder text from 2012 and the first succubus you meet has tits that defy not just physics but common sense. Like, her back must be made of steel cables. But fuck if I didn't click through every single dialogue option twice just to see her tail twitch when you say something lewd.
The fantasy setup is the usual, you're some nobody who stumbles into a pact with a demon girl, except the writing has this weirdly specific thing for how her claws feel on your skin. It's not polished at all, some lines are actually just missing words. I think one bubble just said "you feel her ___". But the harem promise is there, she mentions a sister who's way more cruel and into edging, which got me actually frustrated that the demo ends right after the first proper scene. You get a handjob that's described with way more detail than anything else in the game and then it's over. No build up to the other girls. Just blue balls.
The art is that messy hentai style where the cum looks like melted candle wax but the expressions are perfect. She has this look, half bored half hungry, that makes the whole "give me your soul" bit actually work. I kept expecting a second scene to unlock but nope. Just the one. I guess the project hopes to include "tons of erotic scenes" but right now you're paying with your time for a single fap and a cliffhanger. The demon girl has unique traits they say, I saw exactly one trait. She's horny. That's it. Forgot what my point was. The succubus has horns that clip through her hair in the third dialogue screen. I don't know why I care about that but I do.