Even if he didn't have to go to school in order to either apply for certain lectures or receive the ranking rewards, Shane still wanted to attend the first theoretical lesson in order to figure out if his teacher had something important to say.
Afterwards, he would receive his reward which was most likely, access to the Dimension-spheres and he could immediately request to enter it.
Shane was not sure about the number of hours that he would receive, but it had to be several hours.
Having crossed the threshold for the martial arts and knowledge exam for the first ranking, Shane knew that he would receive at least four hours from these two rankings, while the mortal combat ranking would most likely reward him with two additional hours.
Other than that, there was only the [Wealth] ranking for him, because the [Stage-to-age] ranking was nothing he would fret over, which included the [Lifestyle occupation] ranking.
