Satanic start

This story is about the result of a brutal experiment resulting in two demons twins. Yukia and Rina. They are the daughters of Satan's best friend Lucifer.

After a tragic day I their teen years they decide to go to cram school to be exorcists, despite them being demons.

But it all begins in a stone room in a tree in the rain forest.

I do not know any of the factors except Yukia and Rina.

I hope you enjoy this book!