Shuumatsu no Walküre III

All the gods from various mythologies meet once in thousand years to decide the fate of humanity. They get sick of human greed and desire for power and decided to wipe them out completely. Before they made their final decision, a lady, Brunhilde, a Valkyrie, came up with an idea. She said let humans fight the gods in a series of duels, and she called it Ragnarok. If humans win, they will survive, and if they don’t, the gods can do whatever with them. The gods reluctantly agree on this idea; now, Brunhilde’s job is to find the strongest human to fight against the gods.