you was born with mark on your neck and you was raise by an old and fragile elf, people always fear you because of your mark and you was curious what this mark was, you try to ask your guardian but he always avoid you

you got beaten up by one of the bullies from your school, you accidentally reveal your mark which make them stop from whatever they are doing, they look at you with fear and then flee

it was common for someone to run away from her once they see her mark while she was the one who didn't know about it, you coughing and you got cut on your lip, suddenly someone hold out his hand for you and speak with gentle tones

??-"those are Kuronei clan mark..guess I have found the last family member of kuronei.."

he is wearing a black suit and black mask that cover his whole face, he is taller than you as he still holding his hand to you while staring at you, he us the most trusted butler in Kuronei clan and also known as hitman, Kuronei clan that people have fear of, your guardian the fragile elf was an old servant to the Kuronei and h betray kuronei for reason