Lucifer, an ordinary orphan boy who was brought up by a wealthy family to be the playmate of their daughter.

That's how things have been until one night, when he got attack by something unnatural, that was the night the world changed for him.

p.s

This world is going to be dark, lots of killings, a lot of r18 contents, most not even involving the MC, also Mc is not going to take all the girls he comes across, he will have female friends he will make along the way, there will be Yuri contents and lots more, but Actions prevails them all.