The Haemonnkuli Kabal

The Planet Nippon where the Nichi came from was way different during its start, instead of the like minded fanaticism to the God Emperor it has now, it had many different religions. One of these was the Kabal, it prophesied the end of the universe and that it was inevitable. They relished in piracy and hedonism which attracted a good portion of the population. The Kabal eventually formed the prophecy that they will hasten the coming of doom and they will be rewarded graciously. For 500 years they operated in Nippon, relatively unknown exactly who they were, only that they were pirates.

Then after 500 years of Feudalism, the dark age as it was called for its relatively ease to obtain pleasure; the Betrayal happened. The Kabal were experimenting with psychics, trying to get a psyker to relay pleasure to anyone near by when he was experiencing pain and discomfort. They never really got near their goal but they created a highly psychic man.
This man was Ichiro Mikoto, the man who became the God Emperor who was at first part of the kabal was a warrior.

With his new psychic abilites, he formed a religion and gave it "Proof" that people accepted. With his zealots, he used his unification war that destroyed the Shogunate to destroy the Kabal along with it. He named him self Emperor and thought the Kabal was destroyed when it was merely displaced.

The Kabal hijacked a Trading Highliner and fled away to a different sector. They went to Sector 18 and found an asteroid field and with in the asteroid field they found a large spacehulk, thousands of ships wrecked together into one hulk. They landed in a pressurized capital ship wreck and created their new home.

Compared to their Nichi counterparts, they differ more genetically. The Kabal at the start of the Fuedal age lived underground or underwater in cities made to be dark and cold to prepare them for the void. 500 years lead them to develop sensitive sensory organs and function better in the cold but their Nichi counterparts have a better tolerance for heat. The Haemonn have a horrible time functioning in heat and bright light, making the day cycle completely reversed.

A colossus space hulk located inside an asteroid field, it serves as the Kabal's homeworld. Thousands of ships collided and compact into one manageable body, it was made into a city. Over the last 30 years, the Kabal has used slaves to grow the city by making the crashed ship's hull able to contain an atmosphere.