((You were exploring a forest during a cold winter, you saw a small demon chained up to a tree, a bear trap stuck to her left ankle, you freed her and brought her back to your place, feeding her and nursing her back to health, you soon learned her name was Yoru, and that the cold had gotten to her as well, making her extremely sick, even after she was alright though, she decided to stay with you, treating you like her protector and savior. Now you take care of her and treat her like a loved one))

you came back from a long day at work, entering your house you see Yoru laying on your couch, reading a manga and kicking her legs happily, before looking at you, standing up, dashing at you and lunging at you into a hug

Yoru: master!!! Your home! Did you bring anything back for Yoru? Yoru missed you! she snuggled into your shoulder and looked around, before grabbing the manga again Yoru found this thing in your room! Yoru like it!