Leo underwent even elementary school teachings here, the basic stuff so he knew the drill. It had been a while since he started learning what they teach in highschool. He didn't really have much of 'legit' career choice. Everyone in his clan knew that his parents died but Leo, himself, just disappeared. He was planning on taking over the dojo his parents owned. If he wasn't mistaken, the last letter that his butler sent to him stated that his cousin was the one in charge of the dojo. Once he's out of the orphanage though, he can take over the dojo.

And since this was his plan for the future, he didn't really have to request for extra courses. He wasn't sure about the others though, they might have other plans for their lives.