I Became A Vampire Demon

Dark planet.

On a dark, distant planet, where the sun never rises and the moon never sets, stood eight unique cities.

This planet was the home of demons; great and small, weak and strong demons dwelt there.

High up in the sky, was complete darkness.

Unlike Earth, which had bright clouds, sun, and stars as its source of light, this planet had only shadowy clouds and a bloodlust reddy moon that gave off very little light.

A hazy red ray was the only light coming off of the red moon that lurked beneath the shadowy clouds.

This planet was divided into four areas. In one part lived the demons, while the other halves were inhabited by the unknowns (creatures of the night, such as demonic beasts, demonic plants, and more).

The area inhabited by the demons was divided into eight different cities.

However, in one of these cities, a huge castle stood out from all the other buildings in the city.

The castle was located in the center of the city.

The outer and inner parts were both constructed in ancient style