She is the embodiment of all hatred against the Lunarian race, especially Chang'e, whose husband shot down the sun and killed Junko's son Bofeng. She is friends with Hecatia Lapislazuli who sympathized with her as she holds a grudge against Chang'e as well.
Unlike other Touhou characters, she has no in-game title. Her official profile simply says "(無名の存在)"/"(Nameless Being)" in place of a title, likely because she has purified herself of all identifying information.
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