Midnight Madness
Nzaar, the captain of the small ship, was a Qwash. Qwash were an extremely violent species and lived as nomads throughout the universe. They were not too significant on a large scale because of their severely lacking population, since they never settled anywhere, and they didn't really focus on developing their civilization.
Despite these extremely negative aspects, they could be considered a common sight in many interstellar metropolises due to the simple fact that they were a very talented species. They had a higher growth rate in the lower cultivation levels than many other species, humans included, and were more often than not winners in most fights. And, for the fights that they lost, a lot of the time they managed to escape.