These are the normal Cultivation levels of this world:

Qi Initiation/Meridian Opening

Body Assimilation

Foundation

Pillar Creation

Core formation

Nascent Mind

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Domain Consolidation

Master

Prince

King

Emperor

But, Atuel doesnt have a cultivation manual that opens up his meridians. He will have to walk blindfolded and hopefully make it out the outside.

Qi Integration

Beast’s Body

Qi Foundation

Base Creation

Monster Core

Sapient Mind

Demon Domain/Human Form

Demon ArchDuke

Demon Prince

Demon King

Demon Master