Record of Ragnarok

The story begins when the gods call a convention to decide whether to let humanity live or die, and settle on destroying humanity. But a lone Valkyrie puts forward a suggestion to let the gods and humanity fight one last battle, as a last hope for humanity's continued survival. 13 gods will fight against 13 human champions in one-on-one battles to decide whether humanity lives or dies.

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Alt Official English: Comikey, MangaHot