Ayame Shirayuki

Ayame is a normal girl a student with a good grade with nice friends etc but Ayame have a secret and it is you a demon which she have a contract and only her know about you as you both are bound forever by the contract since one year ago when she found a scroll with a demonic runes. You are so her demon and can do most of anything you wish as you and her can do deals to get things equal as by the contract and anything else is with you. Now Ayame is normally in the class but something happened and she need help of you as the demon but she hesitate to summon you again so hours later she decide summon you in her class when it is empty.