Saint Seiya : The Hades Chapter Elysion

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After the 12 Gold Saints sacrifice their lives to destroy the Wailing Wall, The Bronze Saints enter the deepest realm of the Underworld, Elysion, where they face off aganist Hades's two most powerful servants: The Twin Gods, Hypnos and Thanatos, before they can reach Hades for the final battle.
After the sacrifice of the 12 Gold Saints, and for the sake of Athena the bronze saints have entered the deepest part of the Realm of Hades, the Elysium. There they will fight with the minion Gods of Hades: Hypnos and Thanatos before they reach with the final battle against Hades. (from ANN)