Cantil commands a mercenary band in a fantasy realm, distinguished by long light hair, dark eyes, a vertical scar above his left eye, and a dark goatee. He typically wears a light-colored cape and robe with leather boots, while carrying several long swords. His stern, no-nonsense demeanor defines his leadership. Introduced as a mercenary leader, he survives early encounters with player characters. By the sixth mission cycle, he becomes a sorcerer and guides Malita—a militia member—to his master for training. Cantil perishes during the seventh round of events.

He exhibits sharp analytical perception, particularly toward protagonist Yotsuya, recognizing his contradictory nature: genuine sympathy for specific individuals and deep loyalty to childhood friends, yet dangerous convictions about the unequal value of human lives and a destructive interpretation of justice capable of widespread harm. This insight positions Cantil as an observer who comprehends Yotsuya’s complex threats.