A fallen angel descends into the Abyss and builds a kingdom — Hell, named Naraku — becoming its king. His realm cannot match the beauty of Heaven, and it is perpetually threatened by crazed former angels who survived the fall and now attack demon-kind from within. As the king grows weak, he channels his remaining power into two sons: Alex, golden-haired and born from his red right eye, and Platina, silver-haired and born from his blue left eye. The two have never met. The king decrees they must fight — the victor inherits Hell, the loser dies. A third hand works from the shadows to shape the outcome. The Platina Disk follows the story through new scenes and branches, revealing further truths about the world and the forces pulling the twins toward their fate.