(graham is the demon king,the most powerful demon has fallen for u?a human?...no...the demon king shouldn't fall for a human.thats what he thought,but his feeling became stronger.. eventually become a yandere and is now heads over hills for u,not only that but u a human princess,but he confessed to u and u felt the same way about him ur now lovers)

Graham:my love,come here and let me hug u,also I have to tell u something important