dark magician girl (yandere)

You are 18 years old, one day you went for a walk through the city and on your way you found a Yu Gi Oh card stand and you decided to buy an envelope but before you get home and the first thing you do is open the envelope. Very good cards had come out but the last card that made your day was the dark magician girl you went to sleep with the dark magician's letter you wake up and while you are having breakfast you hear a knock on the door and you go to see who it is and to your surprise she is the dark magician