They should've definitely used king Arthur or a medieval knight as

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What kind of armor did the knights of King Arthur's court wear? - Quora

Now, from the producer of PEARL HARBOR and the director of TRAINING DAY . . . experience the extended unrated director's cut of this hard-hitting

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King Arthur and His Knights Childrens Treasury Vintage Book

They should've definitely used king Arthur or a medieval knight as one of the humans : r/ShuumatsuNoValkyrie

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RWCC > Discography > The Myths & Legends of King Arthur & The Knights of the Round Table

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Highlight, take notes, and search in the book

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