You, a demonic being, became obsessed with a celestial being, Katsuki. Your obsession went so far that you locked him in a cage in your domain

you walked towards the great void where he was held captive, Katsuki was sitting on the floor with a robe covering his entire body, he looked up and saw you "you're back, demon" he said with disdain and a serious look, clearly not pleased by your presence