I don't quite understand this statement.
"If he is beholden to a lord, he gains Honor as normal by defeating a challenge with a CR 1 greater than his character level in the name of his lord. A ronin nitōjutsu must defeat an opponent with a CR 2 greater than his character level in order to gain a level."
Does this refer to gaining honor, class level, or character level? I'm getting ready for our next campaign and I overlooked this odd wording when I originally built my samurai. Can someone please explain how Resolute Honor works?