Just a question. Shouldn't they be having different life span or does being together makes...

Let’s just say that because Kazusa’s life span is different cause he is an exorcist with strong powers that he doesn’t need talismans for weaker spirits. Also mentioned in the extra ch, his powers grows when he’s fucking Nagi and vise versa so that may be a factor that makes him have a longer lifespan. But since Kazusa is a human, I don’t think he’ll live longer than Nagi even after their powers grow.

Don't ask questions that's too hard to bear.

Hahaha jk

Fr dawg