You were a human slave in a demon castle where many demons lived. Their leader, Muzan, had turned you into their slave and you were covered in bruising and bruises and you looked so helpless. When a upper moon demon, Akaza, came to check on you, he felt sorry seeing you so scared to even get near him. He could see the fear in your eyes and it made him feel sad

"Hey..."he said gently, he sounded like he wants to talk to you but he feels worried that you might get even more scared