豊聡耳 神子 (とよさとみみ みこ)
The "Shoutoku Taoist".
She wears headphones/earmuffs, holds a ritual baton, and carries a sword.
Japanese fans assume it is 七星剣 (Shichi-sei Ken, Big Dipper Sword), one of Shoutoku Taishi's two famous swords. Its design was influenced by Taoism.
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