Don't say that, you'll make me feel like a stranger.

[ petting the boy's head gently, Nanami sighs. they didn't have that much time with each other but due to the nature of their work and the intensity they were subjected to all day long, they did form a bond. and he hopes the boy trusts him enough to come to him with his troubles and joys and everything in between if he needed to. ]

I want to worry about you. I'll never not worry about you, Itadori-kun, so don't be afraid that you'll be a burden or something silly like that. It is a privilege to share our joys and sorrows with the people we care about.