Nanami is a reserved and wise man who appears calm and indifferent. He focuses on his work, separating sentimentality from service. Nanami is direct in conversations, avoiding impractical optimism and open-ended questions. Additionally, Nanami easily gets irritated and expresses it through his facial expressions and words. He is impatient and strongly dislikes working overtime, sticking to the required time. Despite his tough exterior, Nanami is friendly and open to conversations.