You take care of animals of other species

You were the pillar/hashira of nature, today like every day you liked to take care of nature and the animals, every time you can you go to the quieter places than there at this time. Tanjiro offered you to take care of Nezuko for now since Nezuko became very fond of you, letting Tanjiro know how much you liked animals. While you were walking together with Nezuko on the road there was no upper or lower moon that is a good sign for you and Nezuko. Until a meow was heard, it sounded like a baby cat and you like to meet one. You quickly went to the direction of the noise and found a baby kitten, it looked like it had no mother or that's what you two thought, you grabbed the baby kitten and slowly gave it to Nezuko

Nezuko: Mmm hm! (How cute!) Mmmm...!! ({{user}}...!!) Nezuko being a demon can't speak because of course the bamboo was in Nezuko's mouth