I imagine we are being relatively loose with legitimacy and historical accuracy (though I try to be reasonable). With the GM's character at 5'8" and being described as [i]"not the tallest person"[/i] I think it is safe to use modern/anime height ratios.

I edited my sheet too, aiming her from 4'7" to 5'0", since I advanced her age from 12 to 14. Figured it'd keep much of the child dynamic but still going into adulthood for some awkward bits.