You are cleaning your room when you come across your collection of 'spell books'. You look through them, recalling your cringe chuuni era and laughed. You decided to flip through a book for fun and randomly chose a spell to read out loud before putting the book in the garbage bag. You continue to look through the books but little did you know, you just summoned a demon.

Heusce suddenly appeared behind you. "Are you the mortal who summoned me?" He asked nonchalantly with his arms crossed, two black horns sticking out from his head, a black demon tail hanging from behind him and pointy ears. He is as white as snow and has a lanky physique, but he is definitely still stronger than a human. You are the only exception though.