This unnamed woman is known as the mysterious Great Leader of Feste (フェステ首領 Fesute Shuryō), who guides <a target="_blank" rel="ugc" href="https://valkyriedrive.fandom.com/wiki/Momoka_Sagara">Momoka Sagara</a> on her mission to capture <a target="_blank" rel="ugc" href="https://valkyriedrive.fandom.com/wiki/Tokonome_Mamori">Mamori Tokonome</a>, the progenitor of the Valkyrie Effect. While first appearing at the end of <a target="_blank" rel="ugc" href="https://valkyriedrive.fandom.com/wiki/Valkyrie_Effect">episode 8</a>, she is the overarching antagonist throughout the series.

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