He was given a hut and a set of rules, no allowed within the vicinity of the tree unless the guardian was with him. Not allowed to come out at night since it was the time when the plants would be relieved from their light transforming duty. Given only a wooden sword to practice that looked like the real deal. Stephan felt something wasn't right but he was willing to let it slide temporarily until he learnt the ways of a sword. It would come in handy.
No matter what amount of knowledge he had, his body was still untrained. He could imagine them, remember how the character in the game moved the sword or any type of weapon. However, there was a problem, something he didn't notice and didn't take in his calculations; it was a character, it was bound to know all styles simply by touching a sword. He wasn't one. He won't be able to learn a skill simply by reading it or learn a fighting style simply because he touched a weapon. He had to train.