@Ammokkx Not at all, a plot point can be built over than just more than one duel.
Oh, alright, got me worried there for a sec. Also, uh...
(the person he stole his ring from was dead).
idk why you felt the need to specify he stole it off the previous student and that they were dead. He is posing as a teacher, and said he 'confisticated' the ring. It could be speculated he actually asked the student to hand it over, which then verbally confirmed it, thus not making it stealing. I actually thought that's what happened at first, or that he actually had two rings and won the second one.