A smirk hushed over the First Demon King's face.
"Now that is rather interesting," he said. "Finally, a worthy opponent."
A series of cracking sounds was heard, and the First Demon King's body underwent a drastic transformation.
The demon's body began to convulse, his muscles spasming and twisting like snakes beneath his skin. His bones creaked and groaned as they stretched and deformed. His flesh bubbled and melted, revealing the pulsating veins and sinews beneath.
His eyes, once bright and intelligent, glazed over and turned a bloodshot red. His mouth twisted into a grotesque leer, revealing rows of jagged teeth. His long black hair turned silvery white, his scalp becoming raw and inflamed.
The two long horns on his forehead disappeared, replaced by six shorter horns that grew on top of his head.
