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Nagi's twin sister and also a goddess.Zange took over the body of Hakua Suzushiro in order to walk among humans.
Like Nagi, Zange's original form was a sacred tree. In order to attain her human form she took over the body of a girl named Hakua Suzushiro. Hakua is the true daughter of the Reiri Suzushiro and still bears slight consciousness even after Zange took over her body.