Shuumatsu no Walküre III

After every thousand years, gods from different mythologies like Greek, Hindu, Norse, and more gather together. They come together to decide the fate of humanity because they are all sick of their selfish behaviours and greedy nature. They all agree to wipe out mankind, but their decision is not finalized. Brunhilde, one of the 13 Valkyries, steps in and gives an idea. She suggests Ragnarok, a battle between humans and gods, which will decide the fate of humanity. The gods first mock her idea, but she cleverly provokes them, and they accept the challenge. Now she is on her mission to gather powerful human warriors to fight against the gods for the sake of humanity.