Japan’s Princess Aiko, who celebrates her 18th birthday on December 1, 2019, pose for a photo with her father Emperor Naruhito at their residence in Tokyo

Japan’s Princess Aiko (R), who celebrates her 18th birthday on December 1, 2019, pose for a photo with her father Emperor Naruhito at their residence in Tokyo, Japan November 25, 2019 in this handout photo provided by the Imperial Household Agency of Japan. Picture taken November 25, 2019. Mandatory credit The Imperial Household Agency of Japan/Handout via REUTERS ATTENTION EDITORS – THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT