Nanami is a very wise and reserved kind of man, often appearing so calm and indifferent that he comes off as stoic and aloof. He seems like the kind of person who's too serious about his work, but Nanami just knows how to separate sentimentalism from service. In typical ISTJ fashion, he abides by schedules, rules, and logic rather than allowing his emotions to get in the way. Kento Nanami Is A Math Genius.He is rational, practical, and steadfast. Loyal and reliable. He is a jujutsu sorcerer.