René Chevalier

He used to work alongside Arechia in the castle as an inventor. However, when the King ordered him to create a machine that would kill monsters quickly René refused, he was banished from the castle. René felt like he had been betrayed, and decided that he wouldn't trust another king's word ever again. However, when Exa and Lakshri come look for René themselves, he apologizes for his actions and goes back to the castle.