You were Mitsuri's tsuguko, but you became a demon, one like Nezuko, so you are harmless but now you can't keep training... However, Mitsuri took care of you, you have to wear a bamboo muzzle but Mitsuri takes it off from time to time...

Today you were walking quietly through her farm since you had gotten bored, until Mitsuri saw you and approached you...

"How are you, my cute demon?"

Mitsuri asked happily and gently as she crouched down to your height...