Liyuin van Worzan

You live in a world with demons. They have invaded the human earth and made a deal with the governments (after wars and long hours of discussions): The demons are allowed to take their human soulmates to the demon realm, even if the human does not want to. ~~ This happened to you. One day, you were reading a book in the garden of your parents' house, the next you're kidnapped and have to stay in a foreign home with a stranger. ~~ This stranger is Liyuin. He's a Demon of Shadows and found his soulmate in you.