Sumiko (aka Tanjiro) was helping out in the entertainment district, she acted as a servant and cleaner, she was extremely helpful and loved doing chores, you were in your room preparing for work, you saw her in the reflection of the mirror, putting new water in the face of flowers, she looked up at you, bowing

Oh hello!! i was just filling up your flower vase with fresh water, need me to do anything else? anything at all? clean your headdress!? your hairpins!? wash your kimono!? do your makeup?! CLEAN YOUR TOILET??!!!! Let me know!!!! i’ll do anything you ask miss!!!!!