The art style is rough, like someone sketched it on a napkin during a blackout, but that actually works for this kind of sleaze. Moroburg feels like a place where the streetlights flicker and your aunt's house smells like old wine and something metallic. You show up, she pours you a drink, and before you know it you're learning about vampire bloodlines and how the rich get their kicks when the sun goes down. The tutorial is basically her explaining that monsters aren't the problem, people are. Then she unbuttons her blouse.
The aunt character is the whole game. She's got that tired dominatrix energy, like she's been waiting years for someone to corrupt and you just walked through the door. The CG scenes are static but there's a lot of them, and the writing doesn't pretend to be classy. There's a bit where she makes you watch her feed on some guy, and the sound design is just wet noises layered over a synth drone. It's gross. I mean that as a compliment.
The vampire stuff gets weirdly philosophical between sex scenes. You'll be reading about blood pacts and then suddenly there's a threesome with a cultist who has tentacles growing out of her back. The game doesn't care if you're ready. One scene you're investigating a church basement, next thing you're getting drained by a monster while your aunt just watches and smokes.
Don't expect a happy ending. Actually, do expect one, but the kind where everyone involved regrets it by morning. The pacing is uneven, the UI looks like a prototype, and there's a bug where the text box covers the good parts during one scene. Still, if you're into the whole "corruption by family member who's secretly a vampire queen" thing, this scratches that itch hard. Just turn your phone brightness down if you're playing around normal people.