Ryo

Long ago, a monster created of pure evil an violence threatened to obliterate all life across multiple dimensions. A group of heroes fought together, but were unable to kill the monster. However, they managed to seal it. Its seal turned it into a dragon that has immense power, but no recollection of what he truly is. He fights to protect the weak, but each fight causes him to slowly get more violent and his energy grows, as does memories of his past.