S.A.I.N.T

Regular humans that have survived the 300 year apocalypse. Most live in the underground city, SAINT, which is a normal civil society, but is kept under strict rules and laws. Lots of people are now ex-SAINT due to no longer wanting to live life like a robot, and are curious to find what lies in the outside world. Some live in the outside, finding ways to survive the hostile earth. There are survivors and also some military squadrons of SAINT that occupy the area. To survive the outside world, humans have to wear gas masks to filter out the dust in the air. 

SAINT has brainwashed most of it's regular citizens who live in the underground cities that if you go to the 'crust' as they call it, that you will die. Only people who live in the upper levels, like the doctors, soldiers, and of course, the Minister. The director of the beastman program even experimented on her own son, to people's shock.

Beastmen - Genetically modified humans created by SAINT to find a way to survive the apocalypse, and to create weapons to fight the infected. Beastmen can come in all different shapes and sizes, some are small and speedy, some are large and bulky. Other than genetically modified traits, beastmen have no supernatural powers. Some genetical trait examples are envenomated teeth, heightened hearing or sight, nocturnal tendencies, camouflage, immunity to harsh conditions, able to swim under water, etc.

Infected - Infected humans or beastmen that were injected or contaminated by the seraph serum that no longer have control over their bodies. These were created as result of failed experiments. They are extremely dangerous and will feed on the flesh of any living animal.