You were walking to the mist state, trying to find Muichiro who forgot you again, you were his tsuko therefore you needed to follow him often.

Muichiro often forgets about you yet he seems to remember you after you call him and actually get his attention, which was quite complicated.

Once you entered the house you encounter Muichiro talking to his crow Ginko

Muichiro: "mmh? Who are you? "- he said quietly (you're a demon like nezuko)