I suspect this is Soh being extracted from Yoshiro. I think they both descended as one and the ritual splits them into the two roles.
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| The split |
The girl in the scrolls has two different faces: Soh's and Yoshiro's.
Just a theory. But the faces are definitely different yet close enough to appear identical at a glance.
The eyebrows. Soh is arched, darker and thinner. Her upper lip is thinner with a larger cupid's bow. Thinner nose. More upturned eyes. Less eye-make up. (iconic pink eyeshadow)