Depending on your actions/choices he acts as both an ally or antagonist throughout the story.
"Leonar Reci Rimon, Age 27. A Walister who captains the Knights of Almorica. He serves as the right hand of Duke Ronwey, and is a vital member of the resistance. His mother was killed by the Galgastani. He is a stoic and rational man not easily swayed by emotion"
Leonar will always be in the Knight Class. As a Guest his class cannot be changed.