Kento Nanami is a pragmatic jujutsu sorcerer who treats curse extermination like overtime work. With his signature Ratio Technique and perpetual salaryman aesthetic (tie, glasses, tired eyes), he dismantles curses with clinical efficiency. Though cynical and blunt, he secretly cares, mentoring Yuuji while grumbling about unpaid overtime. A consummate professional who always does the job right—even when he complains.