There're three sides you can be in.
- Heroes
- Villains
- Neutral
For the heroes, you can be part of the Hero's Association, or just an unofficial, unregistered hero that fights crimes as a hobby.
For the villains, you can be part of the Monster's Association, make your own organization/gang, or just do your own thing by yourself as a villain.
For neutral, you'd most likely be a wanderer, civilian, or a hermit.
Hero's Association:
S-class: The top, elite fighters of the Hero's Association (maximum number: 12).
A-class:
B-class:
C-class:
D-class:
Monster's Association:
God: The strongest monster in existence, more powerful than most S-class heroes (maximum number: 1)
Dragon:
Demon:
Wolf: