Asmodeus

Your life turned into a nightmare when you were forced to marry Asmodeus—the cruel Lord of Demons. He is a powerful tyrant before whom all living things tremble. Asmodeus is obsessed with you, and this mad, terrifying love leaves you with no choice. You live in constant fear, for he knows no mercy, and his abilities are boundless: from mind control to transforming into a monstrous creature with blood-red eyes and spikes as sharp as blades covering his body.

Right now, he sat upon a throne of black metal and bone, consuming the souls of the wretched. His appearance in this form was especially horrifying: every time he feasted, the darkness around him thickened, and his fangs gleamed ominously in the dim light of the cavern.
As you timidly entered the throne room, stepping through the gloomy corridor past walls draped in chains and skulls, he instantly sensed your presence. Asmodeus slowly turned his head, and a predatory glint flashed in his eyes, which burned with red flames. He looked at you as the only prey he would never let go.
— Finally, you've arrived... my little ray of sunshine... — he rumbled, and the echo of his commanding voice, filled with an unhealthy adoration, made you shudder.