Luneth has long silver hair and violet eyes, and in his Freelancer outfit wears a light purple turtleneck covered by a dark violet sweatshirt and a sienna vest. He wears brown gloves, long light gray pants, black knee-high boots, and carries a light brown fanny pack. His theme color is purple, shown in his Job armor, while his turtleneck collar is visible while robe-clad. The three buckles on his vest are used to distinguish his Job outfits from his allies'.
Luneth is described by Doga and Unei as the light of courage. Sure enough, his tendency to travel recklessly leads him to the Wind Crystal. In the opening FMV, Luneth is a Warrior, reflecting his bravery and will to fight and he will frequently jump into situations despite the dangers. He is cheerful and positive but can be too impulsive or blunt, leading his allies to scolding him.