Nanami is a tall, well-built man with blonde hair styled with a neat part. He has very thin eyebrows as well as small eyes that are usually covered by his signature sunglasses, which don't have arms that wrap around the ears.
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 work.