Generic Hentai Occult

From the introduction: On the surface, this place is just your ordinary average world. The birds are singing, flowers are blooming, fat nerds hypnotizing cute chicks... Okay, maybe not so normal. On first glance it is so, but just underneath that are a number of devices of unusual origin slowly circulating the world. One of these devices is about to fall into your hands, an utter coincidence I’m sure. In addition, there are the last remnants of the fantasy era, the Succubus roaming about, sucking cute boys dry and ‘cursing’ women to be more interesting.