Vampire Princess Miyu
Flag of Shinma (1x21)
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Miyu wanders into a mysterious village being attacked by the three stray Shinma brothers, who kill the villagers and vandalize their homes. On top of this, they demand that the village chief hand over his daughter Sato as their bride. Learning that the chief is a descendant of the Shinma protectors who once kept watch over the guardians, Miyu decides to help them.