A: Weavers.
Weavers have have 5 major realms divided into 33 circles or bones.
I: Coccyx Realm: 4 circles(Bones) : Mortal Weaver
II: Sacrum Realm: 5 circles(Bones) : Earth Weaver
III: Lumbar Realm: 5 circles(Bones) : Sky Weaver
IV: Thoracic Realm: 12 circles(Bones) : Void Weaver
V: Information withheld to Avoid spoiler:
B: Mental Classes
The mental classes has 5 major realms divided into 25 circles or rings
I: Open Mind Realm: 5 Circles(Rings): Red Grade
II: Essence Mind Realm: 5 Circles(Rings): Yellow Grade
III: Vision Mind Realm: 5 Circles(Rings): Greed Grade
IV: Divine Mind Realm: 5 Circles(Rings): Gold Grade
V: Transcendent Mind Realm: 5 Circles(Rings): White Grade
C: Swordsman
The Swordsman has 5 major realms with 20 circles
I: Sword Apprentice: 3 Circles: Mortal Sword
II: Sword Warrior: 4 Circles: Earth Sword
III: Sword Master: 5 Circles: Heaven Sword
IV: Sword Noble: 6 Circles: Legend Sword
V: Sword King: 7 Circles: God Sword
Will be updated as the story progresses.