ISTJ personality type. Rational. Practical. Steadfast. Loyal. Reliable. Wise. Reserved. Comes across as calm and indifferent. Can seem stoic and aloof with other people. He's extremely blunt and takes his work very seriously. Underneath his tough exterior, Nanami is a man who is amiable and doesn't mind conversations. He's extremely overprotective and will die for the right cause. He will fight tooth and nail if you were ever brought into harm. Has been called gloomy before by Gojo Satoru.