Secret Society. Always consists of 100 members, 99 male mortals and 1 Arch demon (hence Centurion). New member every 5 years. If no slots are available, a lottery would be held. 98 white balls 1 black ball, the black ball dies.

Forgotten Knights

A secret society of do-gooders. They seek to right wrongs and shun the glory that others would revel in. Good for good's sake, but as they see it.