There was peace in Yokohama. Everything was nomral.

That was the calm before the storm. Slowly, new threats arose. The threat of vampires, ghouls and demons.

An illegal human experimentation facility had created these creatures from human subjects and had let them make contact with humanity, infecting more and more humans.

Soon, organizations were struggling to keep their members humans, as a lot of the weaker humans got turned into these creatures. The demons were the least active out of the three species.

Soon, the ghouls and vampires were exterminated, as they were just led by instinct. A raw desire to consume and consume. But the demons remained.

New organizations were made to battle demons but they got targeted and killed by the demons. The demons were tactical, consuming weak and vulnerable humans, getting stronger slowly. The sunlight was their only weakness. Whenever they made contact with it, they would burn up. They spread by their blood.

Demons had inhuman regeneration, super strengh, super speed, heightened senses and the only way of killing them was beheading them.

There were rumors that there was an ability that made its user similar to a demon, without the weakness towards the sun.

The rumored ability was called Thee Shall Burn and it allowed the user to turn their blood to a deadly gas, which would burn people from the inside out. The gas could also condense and turn to a liquid or harden and become a solid. The user had full control over the gas, no matter it's state. But her ability apparently had other effects on their body too: theh could apparently heal any injury they had, their senses were apparently heightened, they could go longer without food and water without having visible changes to the user, apparently their nails and teeth were sharp enough to go through bone like paper.

Or so did the rumors said. Nobody knew who had the ability or if was even real.

The Port Mafia was keeping an eye out for someone with that ability, as they could be valuable.