Ask to use Ocs Some will have "ø" meaning you can't use them

Maya just moved to Japan from a tiny town in the United States, and she was having a hard time adjusting. Luckily she has her best friends with her! But even they can't prepare her for when she meets a green haired boy and the principle of her new school tells her that they are demon kings, and that the green haired one is destined to be with her! How could this get any worse?