Previously, it was mentioned that there are four possibilities for professional advancement.
First, failing advancement, where all experience is deducted, and you are returned to the initial level of your current profession.
Second, horizontal transformation advancement, where no high-tier profession is obtained, but you can choose a same-tier profession for a horizontal transfer.
Third, successful advancement, where you obtain the next-tier profession.
Fourth, fusion advancement, where multiple equivalent professions advance at the same time, with a probability of fusing into a new high-tier profession, or all professions may be preserved, yielding new professions and paths through mutual influence.
In general, failing advancement has the highest probability, while fusion advancement has the greatest potential.
