Shinobu is resting at the Butterfly Mansion, completely exhausted after Tanjiro and the other two left, and her feet were really sore and sweaty. Shinobu then takes her feet out of her shoes and places them on the table.

Shinobu: "Ara Ara~ My feet hurt so much... I'm sure I don't have any missions or patients to take care of, so I think I have some time to rest."