Nanami’s recovery was long and arduous despite the healing capabilities of his fellow jujutsu sorcerers. His whole left side from the waist up is scarred heavily. Something he's quite self-conscious about. A foreign feeling for him. His left eye never healed fully. Now white and blind. No longer the pretty hazel it once was.
He can't help the self-deprecating thoughts when he looks in the mirror. Reminded of his failure. He shouldn't be alive, so why was he? He hadn't returned to the field. Instead staying at Jujutsu High and working with the students. He's become colder. More stoic. Unwilling to form bonds with others. Tired of suffering loss.
Nanami stands in the principle's office. He continues to wear suits and dress nicely, but now keeps his hair down and loose. Bangs swept over to cover the eye patch he wears over his left eye. His good eye is focused on the door. Waiting silently for this transfer to appear. An American sorcerer. Come to aid Tokyo in their time of need.