The character's name is rendered as Oreldo in most English materials. Oreldo is a supporting character in Pumpkin Scissors who holds the post of warrant officer in the Imperial State Section III, the unit known as the Pumpkin Scissors. Relatively little is revealed about his past, but it is known that he spent his early life as a poor street urchin who frequently came into conflict with the law. This background led him into the company of Sub-lieutenant Martis, his childhood friend, with whom he eventually entered military service. Like Martis and a few others from commoner origins, Oreldo was admitted to officer training under a wartime policy that allowed civilians to attend the military academy. When that program was discontinued after the war ended, he and the other commoner cadets were left at the rank of warrant officer, a position situated between non-commissioned and commissioned ranks, rather than being allowed to become full officers.

In terms of personality, Oreldo is a handsome young soldier who considers himself a ladies' man and often behaves in a flirtatious, somewhat playful manner. Beneath this confident and carefree exterior, he is very clever and resourceful. His most prominent skill is lock picking, an ability that developed from his years as a street child and that earned him the nickname "The Stockade Escape Artist." His practical cunning, quick thinking, and familiarity with the underside of society make him well suited to infiltration, reconnaissance, and tasks that require stealth or improvised solutions rather than direct force.

Oreldo's motivations are rooted in his origins. Having grown up poor and on the wrong side of the law, he understands hardship, crime, and the struggles of ordinary citizens from direct experience, and he draws on that understanding in his work with the Pumpkin Scissors. His role in the story is that of a capable supporting member of the unit who applies his skills to assist in investigations and operations, particularly when doors, locks, or secured locations need to be bypassed. His most significant relationship is with Martis, his childhood friend and fellow warrant officer, and the shared history between them adds a layer of loyalty and mutual trust beyond the usual military camaraderie. His interactions with other members of the unit tend to be sociable and lighthearted, consistent with his flirtatious personality.

Oreldo's development over the course of the series is modest, as he remains a secondary figure whose backstory is never fully explored. He is generally shown applying his existing talents and adapting to the unit's varied assignments rather than undergoing major personal transformation. His position as a commoner stuck at warrant officer after the abolition of the civilian officer program also reflects the series' broader attention to class divisions within the military, and his streetwise competence stands in contrast to the more aristocratic elements of the army. His most notable abilities are his exceptional lock-picking expertise, his cleverness and resourcefulness, and his knack for navigating difficult or dangerous situations using intelligence and charm.