Undesirable Classes Universe

The World of Undesirable Classes is a lot like ours. Modern, busy, and often unfair.
Unlike our world, it is ruled by magic, numbers, and classes.
It is the world, where the rules of roleplaying games come alive.
For the people in this world, it is normal to have stats, skills, and classes.
They even have health bars and status windows.
Like our world, people try to get ahead of others.
Usually by changing their class. However, some classes should be avoided.
Flawed, broken or misunderstood. These classes are undesirable.