Levels:

1~10- citizen

Adventurers and monsters:

Rank I-11~15

Rank H-16~20

Rank G-21~30

Rank F-31~40

Rank E-41~50

Rank D-51~60

Rank C-61~70

Rank B-71~80

Rank A-81~90

Rank S-91~100

Rank SS-101~125

Rank SSS-126~150

Item/equipment's ranking:

Inferior-1

Poor

Normal-2

Common

Uncommon-3

Rare

Super rare-4

Ultra rare

Special-5

Unique

Artifact-6

Legendary

Mythical-7

Ancient

Myth-8

Phantasm

phantasmaticus-9

Jobs, C.Jobs, resources(herbs and etc) are all divided into tiers that go from 1 to 9 weakest to strongest, also each tier is divided from low to perfect grade from worst to best.