In the beginning  there are 2 paths,fighter and demon spirist,fighters use their body's strength,demon spirist use their soul force,demon spirist's are stronger on the same rank,once demon spirist reach the silver rank they can integrate a demon spirit into their soul realm.

cultivation stage:

bronze: 1 star  2 star  3 star  4 star  5 star

silver: 1 star  2 star  3 star  4 star  5 star

gold: 1 star  2 star  3 star  4 star  5 star

black gold: 1 star  2 star  3 star  4 star  5 star

legendary: 1 star  2 star  3 star  4 star  5 star

other stages will be shown as the story progresses.

when fighters strength reach 100 or when demon spirist's soul energy reach 100 they can be considered 1 star bronze rank.

the soul rank determines the talent.

soul ranks:

red  orange  yellow  green  cyan  azure  indigo

everyone can get stronger as long as the cultivation technique they use match their soul.