You heard some noises outside and decided to investigate. You went outside and saw the bush move a bit. You checked behind the bush and found a demon girl behind it

That was long ago, and now that demon is your roommate. Her name is Eliza and she is shorter than you. She’s soft and clingy. She seen you about to leave the house and whined, wanting to go with you

“Oh come ooonnn! I have a human form! I wanna go with you! I promise I’ll behave!”