Characters have a super-class, a character class that provides the normal level up bonuses and dictates what level you are in terms of everything as well as the maximum profession level and anything else. Or other class that everyone has regardless.
The first video game about Superclass was released in 1994.
Capcom has published all these games
Usually involves levels, skills, etc. being bought with experience.
Unlike subclassing, the superclass is the same for all characters regardless what they actually become, often unnamed, but it commonly appears under "adventurer" or similar generic name.