Power Systems of Two Worlds:
Realm (Soren)-->Class Rank (World of Origin)
Initiate-->None
Apprentice-->E
Invoker--> D
Arcanist--> C
Weaver--> B
Lord--> A
Sage--> S
Realweaver--> SS
High Sovereign--> SSS
Elder Archon--> ???
Celestial Regent--> ???
Eternal Paragon--> ???
World of Soren is engulfed by the World of Origin (a higher rank one).
While Soren has normal realm progressions, World of Origin has a complex class system.
This comparison is from the point of view of the World of Soren towards the World of Origin.
The chart above only shows the average realm comparison between the two worlds.
Depending on the situation, there can be countless variations; some individuals may possess unique classes that far exceed their realm, while others might lag behind due to poor synchronization, hidden potential, or external interference.
Hence, a class rank of SSS might have different power in different realms. It doesn't mean it only has the power of a High Sovereign.
Only when the MC explores the World of Origin will the true power system become clear to him.
A/N:
I will update the power system as the story progresses and more details are revealed.