10 minor ranks within each realm.
Early-Stage= rank 1 to 3
Middle-Stage= rank 4 to 6
Higher-Stage= rank 6 to 9
Peak-Stage= rank 10
Realms-
Elementary Profound Realm(150 years)
Nascent Profound Realm(300 years)
True Profound Realm(450-500 years)
Spirit Realm(1000 years)
Sky Realm(2000 years)
Ace Tribulation Realm(10000 years)
.
(I will update this as the story progresses.)