The Narrator is the Bamboo Cutter's Wife, a childless woman who discovers profound purpose upon finding and raising a miniature girl inside a glowing bamboo stalk. She nurtures the rapidly growing child with deep affection alongside her husband, embracing the infant as a divine blessing and naming her "Princess." Her perspective as a foster mother shapes the narrative, offering intimate insights into the family's joys and hardships.

Her voice frames the story with a reflective, maternal tone. She recounts Princess Kaguya's idyllic childhood in rural surroundings and the family's abrupt transition to capital city luxury after her husband discovers gold and fine cloth in the bamboo grove. Her narration conveys internal conflict as she witnesses Kaguya's distress under societal pressures to become a "noble princess," including stifling etiquette lessons and unwanted suitors. While she displays quiet compliance with her husband's ambitions, she quietly observes Kaguya's longing for freedom and authentic happiness.

The narrative perspective deepens when Kaguya's celestial origins emerge. It poignantly captures the Bamboo Cutter's Wife's helplessness and sorrow during preparations for Kaguya's inevitable return to the Moon, underscoring the emotional weight of Kaguya's attachment to earthly life and the family's powerlessness against celestial forces. In the final departure sequence, her voice conveys profound grief as Kaguya ascends, her earthly memories erased. The narration concludes with a lingering sense of loss, mirroring the couple's devastation while reflecting on the ephemeral nature of their time with their daughter.