Plot
A bamboo cutter discovers a small scale girl inside a glowing bamboo shoot. Believing her to be a divine presence, he and his wife decide to raise her as their own, calling her "Princess". The girl grows rapidly, earning her the nickname "Takenoko" (タケノコ; "Little Bamboo") from the village children. Sutemaru (捨丸), the oldest among Takenoko's friends, develops a close relationship with her.
The bamboo cutter comes upon gold and fine cloth in the bamboo grove the same way he found the Princess. He takes these as proof of her divine royalty and begins planning to make her a "noble princess". He relocates the family to the capital, forcing the girl to leave her friends behind, and the family moves into a mansion replete with servants. The girl is saddled with a governess who is tasked with taming her into a noblewoman. The girl struggles with the restraints of nobility, yearning for her prior life in the countryside.
When she comes of age, she is granted the formal name "Princess Kaguya" (かぐや姫; "The Shining Princess"). The bamboo cutter holds a celebration, where Kaguya overhears partygoers ridiculing his attempts to turn a peasant girl into a noble through money. Kaguya flees the capital in despair and runs back to the mountains, seeking Sutemaru and her friends, but discovers that they have all moved away. She passes out in the snow and awakens back at the party.
Kaguya grows in beauty, attracting suitors. Five noblemen attempt to court her, comparing her to mythical treasures. Kaguya tells them she will only marry whoever can bring her the mythical treasure mentioned. As spring arrives, the Princess wishes to see the cherry blossoms bloom. Her mother and a handmaiden take her back to the country where a blooming tree stands not far from her old hut. Reveling in its bursting forth with life, she happily whirls amid its petals but stumbles into a child. The child's family beg for her forgiveness and leave, reminding Kaguya of her new identity and status.
Returning to the capital, the cart the group is in finds itself stuck, when a ruckus is heard outside. Kaguya notices several men running through the streets, and upon seeing one of them, recognizes Sutemaru, who is stealing a chicken. Unable to contain herself, she cries out to him, but upon realizing her station in life, quickly retreats into the carriage as it drives off. Sutemaru attempts to go after her, but is beaten by those pursuing him, as Kaguya cries.
Two suitors attempt to persuade her with counterfeits, the third abandons his quest, and the fourth gives Kaguya a flower instead of his treasure, but is found by his wife before Kaguya can accept. When the last suitor dies in his quest, Kaguya becomes depressed. The Emperor of Japan takes notice of Kaguya's beauty and tries to forcefully bring her to his palace but she convinces him to leave.
Kaguya reveals to her parents her origin. Once a resident of the Moon, she broke its laws, hoping to be exiled to Earth so that she could experience mortal life. When the Emperor made his advances, she silently begged the Moon to help her. Having heard her prayer, the Moon restored her memories and promised reclamation at the next full moon. Kaguya expresses her attachment to Earth and her reluctance to leave; the bamboo cutter swears to protect her and begins turning the mansion into a fortress.
Kaguya returns to her home village and finds Sutemaru. The two profess their love, and in their joy, they fly over the countryside, only to encounter the Moon and fall. Sutemaru wakes up alone and reunites with his wife and child, interpreting the experience as a dream.
On the night of the full moon, a procession of celestial beings led by the Buddha descends from the Moon, and the fortress is unable to stop it. An attendant offers Kaguya the robe that will erase her memories of Earth. She embraces her family one last time before the robe embraces her. They leave, and the bamboo cutter and his wife are distraught. As Kaguya looks back at Earth, tears fill her eyes.