 If you liked
Shikabane Hime: Aka
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 ...then you might like
Blood-C
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In my personal opinion, Shikabane reminds me a lot of Blood-C. In both anime series, two young girls work for shrine/cults slaying monsters (Shikabanes and Elder Bairins).
The female leads (Makina and Saya) are practically unstoppable. Whilst Blood-C is more psychological, if you enjoy one you will likely enjoy the other what with the similar characters, plot, and gore.