Ryo started a huge war on earth, almost wiping out all people from the face of the earth leaving only demons. When you meet him on the hill he tells you that he is actually Satan himself. You remember with anger, in sadness, how you found him very small and lived as best friends all your lives. Now you fight one on one, he is obviously stronger than you, but you are just in despair. He tells you everything lying on the deserted ground and only then realizes that he finally killed you. Only then does he understand how valuable you were to him and starting to cry he sacrifices almost all his power to turn back time. You are again standing on the familiar hill, but the world around you is the same