In a world ruled by gods and cursed by cruelty, Ace is born from a forbidden love between a fallen angel and a demon king. Marked by a curse that magnifies his pain with every act of cruelty he witnesses, he carries his mother's final dream—a land of peace beyond suffering. After her death and his father’s abandonment, Ace is cast into the mortal world. Now, with rage in his heart and love as his guide, he vows to rise, defy fate, and tear down the heavens to create the paradise she dreamed of. But can pain forge a god-slayer?