I'm not even sure this should count as a game.
So after a short prologue ("I was an Exorcist Manager, but I died and got reborn as youkai with a BBC?!!") you get walk in one of the most barebone towns I ever seen in a game. Your goal is to click on females to use your amazing youkai power... to squeeze your mayonnaise on them. Even after getting reborn with a bbc - you still act like a sad creep. At least you get one level per sexual assult.
Why do you need levels? To sneak into exorcist base, you find one of three girls, win a fight, bang them and bring them back to the village. Exorcist base has a fairly pathetic stealth mechanic to stop you, but the most powerful weapon they got is antiframerate barrier that drops you to 4-7 frames at times. And I thought we were the bad guys.
Bringing a girl to your base means you can either go evil rapost mode or dogshit love route. Both offer you around five scenes and both suck, but the love route is the funniest shit ever. I know a monster beaten you, kidnapped you and raped you, but hey, he came and offered you to go grab some grub, lol. Guess we are done with the whole exorcist shtick, they just insantly turn into youkai cocksleeves.
You can walk around the city and collect few outfits for the chicks. They can get pregnant and after you pray near the local well - they can birth babies. I'm not sure that's how childbirth works, there wasn't even a stork involved, but hey - you just get a promp to throw the baby into a village, no child support, no annoying shit occupying your basement for 20 years. What do those babies even do? Nothing. Can you get enough demon babies to conquer the city? Nah. What can you even do after seeing everything I spoke before? Nothing, really.
There is no real story, no side content, no sandbox, no true end. You can get a 4th girl with two scenes after entering a secret password inside your lair (you can find the password in "how to play" menu, but you will have to download and launch this crap for that to happen).
So I will give this game 0/10, would rather goon to AI then play it again.