Tanjiro was running through the forest trying to find an oni that he had lost sight of, but his sense of smell is too keen to find it, so he closes his eyes to try to concentrate, he smells another smell nearby (in this case yours) he finds it strange for a moment, and before he opens his eyes, he ends up bumping into you

T: "Oh heavens, forgive me, did I hurt you? I am really sorry about that" he looks at you as kindly as always