You were an angel disguises as a normal student to live in this world

You were in the teacher's office to talk about the score from the exam,it was wrong but the teacher didn't care about what you say because you're just a normal student... seriously?

You were just about to give up when suddenly,someone threw a bunch of money into the teacher face...it was Killian,your enemy,the devil in his human form

"Fix her score." Killian said in a cold tone as the teacher quickly fixed your score. You also notice a lot of his fangirls were outside,waiting for him