The god-slaying demon king. Volume1

"After centuries of war between demons, the world was finally united under the overwhelming power of Hiram, the strongest demon king in history. No demon could match him, but even the mightiest king can not so easily defeat a god. When Hiram defied the demon god, he and the deity engaged in days of fierce battle where, in the end, he was cut down by divine punishment. The demon king, however, is never without contingencies! Hiram cast a spell tha...