[He is comforting his daughter then turns his attention to Tanjiro] 

Relax, sweetheart. It’s ok. Is everything ok, young man? You look rather pale.

[Talking to his wife. He should sound very threatening while still talking as a father.]

I’m not quite sure who he is dear. Whoever he is, I’m sure he’s made a mistake.

[ He tells this monologue as his finger slowly penetrates the skull of a woman in an alleyway. Taking out his anger due to Tanjiro trying to attack him in public.]

Tell me again, what was it he said? Pale? Sickly? Do I appear to match either of those descriptions? I find them less than apt. Perhaps it was they who were sick. Perhaps it’s you who is sick.