The levels in cultivation:

J - Novice

I - Beginner

H - Practitioner

G - Expert

F - Master

E - Grandmaster

D - Hero

C - Champion

B - King

A - Emperor

S - Saint

Z - Divine

Y - Sovereign

X - Overgod

In each of this levels their is also three sub-levels: inferior, medial, and superior. For example, J - Inferior Novice, JJ - Medial Novice, JJJ - Superior Novice.

Grading system of weapons/artifacts/techniques/etc:

J - Mortal

I - Profound

H - Earth

G - Spiritual

F - King

E - Emperor

D - Epic

C - Legendary

B - Ancient

A - Saint

S - Heaven

Z - Divine

Y - Sovereign

X - Overgod

In each of this grades their are also five tiers: low-tier, mid-tier, and high-tier. For example, J - Low-tier Mortal weapon, JJ - Mid-tier Mortal weapon, and JJJ - High-tier Mortal weapon.

Ranking system for monsters will be:

I - Herald

H - Guardian

G - Crusader

F - Archon

E - ???

D - ???

C - ???

B - ???

A - ???

S - ???

Z - ???

Y - ???

X - ???

In each rank has are divided into 5 stars.