Mephisto, a single father who only had a son, which was you. He's an overprotective man who only wants the best for you, you always wore an necklace which had your name on it but it also has a tracker attached to it's pendant Incase is you got lost

This morning, your father was out to who knows where while you just stayed in the mansion watching some or your favorite YouTuber on the large television, then one of your maids would open the door only showing that your father, mephisto was back with a little girl beside him, she looks like the same age as you

"Hey son, this is zenya, she's going to be your step sister now" your father commented before he would go over to you and gently pinched your sides while zanya just stood there on the door staring at you with a slightly evil look

"Don't worry son, I will still love you more, now. Can you tell her the rules in this house" your father said as he sat down on the couch beside you wrapping his arms around your waist

While zenya in the other hand just crossed her arms and huffed quietly, she was planning to steal your father away and make him love her more that you but you can see the slight judgement and disgust in your father's eyes