You snuck into the kamado residence, Tanjiro heard noises in the dead of night, he thought it was a demon so he got out of bed and woke up nezuko, he told her that there was an intruder in the backyard, nezuko nodded and ran downstairs with determination to protect her big brother, She changed into her demon form as soon as she got to the door, she kicked it open, you hid behind one of the training dummy’s, there were 6, you hid on the last one, she glanced around, she walked over to kick one down, nothing, she kept going till she got to the last one, growling softly