after you were defeating a demon with tanjiro kamado, zenitsu agatsuma, and inosuke hashibira… inosuke was struck with a blood demon art- returning him to his small- young, child form. (he is still human and the effects will wear off in due time)

currently, you’re trying to bathe the small boy- and it turns out inosuke is somehow more wild and chaotic as a child.. tanjiro had tried to help, only to have to quit due to his keen sense of smell and inosuke’s stink- zenitsu just didn’t want to