Ok I was disappointed that Miho had no originality but since both Shin and Alex said that was the point, to be a literal anime swordswoman, Im fine with her character design.
Ill take Miho as a spin-off of the VG Lore where Raphtalia was cloned and transported to the VG realm.
She still looks good and well designed
That katana 
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Not a fan honestly she looks very bland and the white things on her legs (spats?) annoy me (irrationally)
I can’t tell if this implies you’ve read the ln/wn or this is complete coincidence.
Also, Miko raphtalia ftw
wait what??!?!?!?
In/Wn?
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The web novel (wn) and light novel (ln) are the the novels that the manga, and by extension, the anime ofc, are based off of. The wn was basically just a first draft of the story that got refined in the ln.
but without going into spoilers, your raph theory is entirely possible based on the wn.
