Ukon Kijima possesses a slim build, long dark hair, and blue eyes, hailing from Japan's Mie Prefecture. He exudes a lighthearted charm, often engaging in flirtatious banter with young women. This soft-spoken demeanor and his talent for forging easy connections serve to conceal his true feelings, which he consistently masks.

His loyalty lies firmly with Benio Myojin, providing crucial support during her operations against oni. Though capable in a fight, Ukon strategically avoids the front lines. He prefers the role of a tactician, his calculated approach and reluctance for direct combat highlighting his focus on strategic support.