| A member of the six renowned Zexen Knights. He is unrivaled with his sword handling techniques and is known as the "Swordsman of Rage".
— Borus' profile
Borus is one of the Six Mighty Knights, the most renowned of the Zexen Knights. He was raised by proud parents in a prominent Zexen family that has produced many fine Zexen Knights but seems to become angry whenever this is brought up. As such, he had apprenticed in the knights from an early age. He is said to be the best swordsman out of the entire Zexen Knights but is also said to lack composure. His temperament has led to him being known as the "Swordsman of Rage." Nevertheless, he is extremely loyal.
He is friends with Percival Fraulein. Though the two graduated at the same time, they were initially assigned to different companies and so did not have much contact. It is only after they both became two of the Six Mighty Knights that they got to know each other. They were initially rivals but eventually forged a bond as comrades.
During the Zexen attack on the Karaya Village at the outset of the War of the Champions, Borus slew a number of women and children. The massacre cast a dark shadow across his mind. Of course, Borus did not fight with the intention of slaughtering innocents but even he could not deny that he had been caught up in his anger, bringing out his brutality. Since then, he struggled to forgive himself, even for a moment. His pride as a knight also got in the way of his acceptance of what had happened.
Borus has harbored strong feelings towards Chris for quite some time. This has led him to become easily flustered and enraged should he be mocked for it. As the knights made their way through the Ceremonial Site for the final battle against the Destroyers, he requested to be expelled from the Zexen Knights. He was aware that his guilt would not be removed by expulsion but was unwilling to let the incident lie. Chris Lightfellow refused and requested that they continue to fight together. Moved, Borus would swear allegiance to Chris once again. By acknowledging his callowness, Borus had finally begun to mature as a knight.
Borus' personality clashed somewhat with the more laid-back members of Budehuc Castle. The castle staff did not like him, especially Juan. Borus however paid little attention to them and followed Chris everywhere she went. Suspicious of just about everyone, Borus immediately let Chris know that Kathy was showing an interest in her horse.
Following the war, Borus continued to serve the Zexen Knights and Lady Chris. His cavalry would act as the vanguard in many border disputes between Zexen and the Tinto Republic.