Described as a hooded figure of ambiguous gender with a thin build. According to Folinic's dialogue, they are essentially a walking hospital, suffering from hair loss, fatigue, dry eyes, and dry skin due to chronic overwork, binge eating, and heavy drinking. Despite this, they possess a noble character and are respected not only by Rhodes Island staff but also by operators from other factions. They are a founding member of Rhodes Island and served as one of the top leaders even back then. At that time, while they possessed brilliant strategic insight, they were also known for having a simple and fragile personality. They were discovered in a state of suspended animation within a sarcophagus in Chernobog by Amiya and were subsequently rescued and awakened by Rhodes Island. For unknown reasons, they lost most of their memories upon waking, though they seem to subconsciously retain their expertise, finding their specialized fields familiar despite the amnesia. (In fact, they conduct research in so many fields that one might wonder if there's anything they don't specialize in. They gave Eyjafjalla their own research notes on Catastrophes, and their reading material spans endless genres including Yan geography, culture, Columbia law, and warfare. This seems to be part of a rehabilitation effort to regain their memories and to investigate current global affairs, given that Rhodes Island is a multinational organization. Consequently, the Doctor's room is filled with a vast variety of books.) Immediately after waking up with most of their memories gone, they were semi-forcibly reinstated as a high-ranking leader by the members of Rhodes Island. As the story progresses, it becomes clear that their grasp of information is not entirely intact. However, based on certain scenes, they are far from being incompetent, showing no issues with basic common sense or managing corporate operations and personnel. Although their title is 'Doctor,' their actions in the story are clearly those of a military commander, even though their official setting is that of a Catastrophe researcher. Despite the memory loss, their knowledge in related fields remains, and they continue to engage in research, though they seem to have retained some 'mad scientist' tendencies. Operators occasionally call them 'Dokutah,' and the Doctor seems to recognize that they are being addressed.