Black Numbers

Black Numbers (黒色軍団) is the strongest unit from the Jura Tempest Federation composed solely of elite daemons that, under the leadership of Diablo, directly serve Rimuru Tempest.

They are approximately 700 personnel consisting of 4 Primordials, their 7 direct subordinates who further have 100 subordinates each. After being summoned, these daemons are made to possess the artificial bodies inside the growth capsules.

Background
After the Monster Capital Opening Festival, Diablo returned to Hell with the intention of gathering around 1000 daemons worthy of serving his master, Rimuru. Thus Diablo set off to search for potential daemon subordinates. He managed to gather a unique daemon with a Unique Skill along with his 100 followers, while also "persuading" 3 fellow Primordials, Blanc, Violet, and Jaune to serve his master, Rimuru.

Members
The Black Numbers are a group of 711 daemons, currently composed of four Devil Lords, seven Daemon Lords, numerous Arch Daemons, and the rest are Diable Chevaliers.

History
To Be Added.

Trivia

 * All the important members of the Black Numbers are named after cars: Lamborghini Diablo, Ferrari Testarossa, Porsche Carrera, Hennessey Venom GT, Bugatti Veyron, Mercedes-Benz SLR McLaren Stirling Moss, Cadillac Cien, Pagani Zonda, Koenigsegg Agera, Lotus Esprit.
 * Ultima is the only one named after a car brand instead of a car model.
 * They're the strongest unit in Tempest.