Author Note:
To clarify the different cultivation levels:
Level-0: apprentice
Level-1: basic cultivator
Level-2: elite cultivator
Level 3: grand cultivator
Level 4: adept
Level 5: elite adept
Level 6: grand adept
For level 1 to 3, they are considered at the cultivator tier.
For level 4 to 6, they are considered at the adept tier.
There will still be the legendary tier, demi-god tier and even higher tiers which would be slowly revealed in the future.