Mills is a former tax accountant of the Elven colonies who was spared by the elves because he had recently been transferred to their territory shortly before the colony’s collapse. After being spared, he began working with the elves. He initially appears shy, fearful, and cowardly, but over time he emerges as a talented strategist capable of making careful calculations and designing effective defense strategies. His background as a tax accountant gives him strong numerical and administrative skills, which he applies to logistical and strategic planning rather than direct combat. Mills’s primary motivation appears to be repaying the elves’ mercy by contributing to their survival and well-being. In the story, he takes on a supporting role among the elf forces, providing the tactical and organizational backbone that allows the elves to hold their own against larger threats. His relationships with the elves evolve from a state of wariness to genuine trust; the female elves in particular gradually develop positive feelings toward him despite their initial reluctance to accept a human outsider. Mills’s character development is marked by his transformation from a timid individual into a confident and capable planner who earns a place of respect within the elven community. His notable abilities lie in strategic thinking, logistical organization, and defensive planning, making him a key asset for the Drifters’ allied forces.