In the modern day. All of humanity's lives are held hostage. If I don't offer myself as a sacrifice to the impossibly beautiful oni, the entire world will be destroyed! What's worse, he's a bodily fluid enthusiast (yes, a body fluid maniac) with an insatiable obsession for your fluids -- especially your love juices. Every night, your body, made hypersensitive by the oni's aphrodisiac-like fluids, is offered to him as a sacrifice... "Don't tell me... she ran away?"