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This handout photo taken on November 24, 2023 and released on December 1, 2023 by Japan's Imperial Household Agency shows Japan's Princess Aiko, daughter of Emperor Naruhito and Empress Masako, posing for a photograph at the Archives and Mausolea Department Building in Tokyo ahead of her 22nd birthday on December 1, 2023. (Photo by Handout / Imperial Household Agency / AFP)
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This handout photo taken on November 24, 2023 and released on December 1, 2023 by Japan's Imperial Household Agency shows Japan's Princess Aiko, daughter of Emperor Naruhito and Empress Masako, looking at the classic book of Hyakunin-Isshu, a traditional Japanese collection of 100 poems by 100 poets, at the Archives and Mausolea Department Building in Tokyo ahead of her 22nd birthday on December 1, 2023. (Photo by Handout / Imperial Household Agency / AFP)
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This handout photo taken on November 24, 2023 and released on December 1, 2023 by Japan's Imperial Household Agency shows Japan's Princess Aiko, daughter of Emperor Naruhito and Empress Masako, looking at the classic Sugoroku board game book, at the Archives and Mausolea Department Building in Tokyo ahead of her 22nd birthday on December 1, 2023. (Photo by Handout / Imperial Household Agency / AFP)