Through Rod's explanation and his own memories, Su Lu fully understood the power system of this world.
First-tier Transcendent, second-tier Elite, third-tier Expert, fourth-tier Master... Each promotion requires a specific 'Profession'!
However, the profession system can be a real pitfall.
For instance... some profession paths only go as high as the third tier with no record of a fourth tier. Unless an occupational person themselves designs and figures out a suitable fourth-tier profession within their path, they cannot advance.
Unfortunately, such exploration often requires a large amount of resources, time, and energy, and might not even lead to success.
Rather than taking all that effort, it's more cost-effective to take on a new profession.
Of course, even then, you would still fall drastically behind and might stay stuck at that stage for the rest of your life.
