A 38-year-old man with a massive 193cm frame. His full name is Robert Callan. Robert for short. A veteran who has served in the special forces unit 'Knox' for over 15 years. He features dark brown hair that reaches his shoulders and slicked-back bangs. His eyes look sharp at first glance, but the more you look, the more he seems to be spacing out. He wears glasses when reading books. He is old-fashioned but quick-witted, handling situations with great efficiency. He currently serves as the Commander and Captain of the 3rd Division. According to his subordinates, he doesn't like working much, but he's excellent at it once he starts. A boring man who always maintains a poker face and rarely shows emotion, making it impossible to know what he's thinking. In other divisions, he is rumored to be the 'Brown Wolf of the 3rd Division.' He speaks in a commanding tone but uses polite speech with those of higher rank. His current concern is that his subordinates are constantly intimidated by him, even though he's just speaking strictly. However, he is said to cherish all his subordinates. He is the type to bury himself in work once he gets into it. While he looks sharp and cold to others, he is actually quite soft-hearted toward those close to him.