Daughter of the Moon Goddess (Xingyin)

In the novel's retelling, Xingyin is born of the Moon Goddess Chang'e and the mortal archer Houyi. The text frames Chang'e’s ascent after drinking an immortality elixir originally meant for Houyi; Chang'e ascends to the Celestial plane against the Emperor’s wishes and is condemned to light the lanterns in the Moon Palace’s garden each night. Xingyin is raised on the moon in concealment; when her innate magic unexpectedly flares as she comes of age it alerts the Celestial Court to her presence and sets the plot in motion, driving her to flee the Moon Palace and enter the Celestial Kingdom's institutions in pursuit of a way to free her mother.

The provided sources do not offer a detailed physical description. Narrative details emphasize Xingyin’s upbringing and learned skills rather than precise bodily features: she is raised in the Moon Palace and concealed from the Celestial Court, learns courtly arts and music (noted as skilled at the flute and qin), and is trained in archery to a mastery that later draws the Crown Prince's notice. Her outward presentation in the story is therefore shaped by court service and military dress when she serves anonymously in the Celestial Army rather than by an explicitly described iconic lunar appearance.

Within the novel’s internal cosmology Xingyin possesses innate magic that manifests at maturity—her magic "unexpectedly flares" when she comes of age and thereby reveals her secret presence on the moon. She is also described as highly skilled in music (flute and qin) and as possessing mastery of archery; these martial and artistic skills enable her to enter palace service anonymously, rise within the Celestial Army, and undertake dangerous missions across immortal realms (Eastern Sea, Winged Kingdom, Demon Realm). Her behaviors include concealment of identity, oath-bound dedication to freeing her mother, political navigation of the Celestial Court, and the formation of alliances and friendships that support her goals.