This is a mixture of lookism and Baki with a little of Reality Quest in the mix. So anyways the ranking is indefinite where as if he reaches a certain stage in his techniques the main character gains an epiphany as well as when he breaks he's limits. the ranks will go on as follows:
Beginner stage
Intermidiate stage
Advanced stage
Elite stage
Professional stage
Mood stage
(???)
You can provide cool names and i will think about it as we go on. The characters status will be known as continue the chapter.
ENJOY