Izor serves as the commander of the Mezarte army and is a central figure in the conflict that drives the story forward. He is a tall, muscular man with short light brown hair and blue eyes, typically seen wearing metal armor with a long black coat and a sword at his hip. As he ages, his hair grays and wrinkles appear on his face, and his later attire shifts to a black uniform with blue and gold embellishments complemented by a long gray cape.

His personality is defined by sternness and deep-seated loyalty. He willingly follows orders from his superiors without question, even when those orders might conflict with his personal morals. This is most evident when he is tasked with leading the invasion of the Iorph village, where he orders his men to capture the women. He takes his duty seriously, most notably in his assignment to protect Leilia, the Iorph woman captured during the raid. He serves her with stoic dutifulness, observing her outbursts and demands without reaction. Despite his disciplined exterior, he is not without internal conflict. He later shows expressions of concealed disgust when the Mezarte King and his advisors speak lowly of Leilia and her daughter Medmel. He also appears to regret actions that caused Leilia distress, such as cutting down the Iorphs who came to rescue her. In supplementary material, Izor is shown to have a family, including a wife and daughters, revealing a personal life outside his military obligations. One of his daughters once gave him a handkerchief to pass on to Leilia, and in a private moment, he ponders over blossoming romantic feelings for her, adding a layer of personal complexity to his professional charge.

In the story, Izor is the primary agent of the Mezarte kingdom's aggression, directly responsible for the destruction of Maquia's homeland. Following the invasion, his role shifts from conqueror to guardian, as he is put in charge of Leilia's safety and confinement. His responsibility is to ensure the success of the royal plan to introduce Iorph blood into the monarchy's lineage. He remains in this protective role for many years, guarding Leilia within the palace. During a later invasion on Mezarte by opposing forces, he continues his assignment, even shooting Krim to stop him from killing Leilia. At the story's conclusion, Izor is captured alongside his men, and his final appearance shows him watching with what appears to be relief as Leilia and Maquia fly away on the last Renato, indicating a sense of closure or peace with her long-awaited departure.

His development is subtle but significant. He begins as an unwavering instrument of the king's will, showing little emotion as he carries out brutal orders. Over time, his prolonged exposure to Leilia's suffering and the royal family's callousness seems to erode his unquestioning loyalty. His expressions of concealed disgust and his regret for past violence suggest a growing awareness of the morality of his actions, even if his code of honor prevents him from openly rebelling or abandoning his post. His trajectory is not one of redemption through action but rather an internal awakening of conscience, culminating in a final moment where his relief at Leilia's escape reads as a silent wish for her freedom.

Izor does not possess any supernatural or extraordinary abilities. His notable skills are those of a highly competent and experienced soldier. He is proficient with a sword, physically strong, and capable of leading military campaigns. His greatest asset is his unwavering discipline and his ability to remain composed under pressure, which allows him to function effectively in highly volatile and morally complex situations.