Confused as it was, almost akin to a forceful transaction, Rocky hired Orton to be his teacher, and it wasn't until he left the Technician Guild that he actually realized what had happened. It felt as though he had been dreaming, unwittingly becoming Orton's student.
Although the event seemed quite dramatic, Orton was indeed a genuine Magic Energy Master. Rocky was still confused when signing the contract, but he had asked the waiter thoroughly about Orton, and the waiter was certain that he was a real Magic Energy Master.
Since that was confirmed, Rocky didn't mind other details. Perhaps Orton's personality was a bit eccentric, but as long as he was genuinely skilled, that was enough.