Aiko, Princess Toshi, commonly known as Princess Aiko, is the only child of Emperor Naruhito and Empress Masako of Japan. She recently celebrated her 24th birthday on December 1, 2025, marking a significant milestone in her royal journey. In recent years, she has increasingly taken part in official duties and public engagements, representing the Imperial Family with grace, dignity, and a growing sense of responsibility. She is considered one of the most influential modern royal figures in Japan.
Contents
Personal Information
| Full Name | Aiko |
| Title | Princess Toshi |
| Date of Birth | 1 December 2001 |
| Age (as of 2026) | 24 Years |
| Birthplace | Tokyo Imperial Palace, Tokyo, Japan |
| Parents | Emperor Naruhito (Father), Empress Masako (Mother) |
| House | Imperial House of Japan |
| Nationality | Japanese |
| Religion | Shinto (Imperial tradition) |
Early Life and Education
Princess Aiko was born at the Imperial Household Hospital within the Tokyo Imperial Palace, becoming the first child of the then Crown Prince couple. From an early age, she was raised under close guidance and within imperial traditions while also receiving a modern education.
She attended Gakushuin schools—kindergarten through high school—an institution historically associated with Japanese aristocracy and members of the royal family. During her teenage years, she spent time studying abroad at Eton College in the United Kingdom, broadening her international exposure.
Princess Aiko graduated from Gakushuin University in 2024, majoring in Japanese language and literature. Her academic studies included deep research in classical Japanese poetry, particularly the works of historical female poets. Throughout her education, she has maintained interests in writing, music, and cultural studies.
Career
Royal Duties & Official Engagements
Upon reaching adulthood, Princess Aiko gradually began participating in more public duties on behalf of the imperial household. She has attended state ceremonies, official banquets, and various cultural and diplomatic events. In 2025, she participated in a number of significant public appearances, including representing the Imperial Family at formal national functions.
A major milestone in her royal role was her first solo overseas engagement in 2025, during which she traveled officially to strengthen diplomatic and cultural ties. Her poised and confident presence gained admiration and global recognition.
Humanitarian & Social Work
In 2024, Princess Aiko began working with the Japanese Red Cross Society, contributing to humanitarian initiatives and public welfare programs. She has expressed a strong commitment to serving society and intends to use her position to help others with empathy and responsibility.
Her growing involvement in social causes reflects her dedication to shaping a meaningful and influential role within the imperial framework.
Physical Appearance
| Attribute | Details |
|---|---|
| Height | 5 Ft 5 Inches |
| Weight | 54 Kg |
| Hair Color | Black |
| Eye Color | Dark Brown |
| Appearance | Known for her graceful and traditional Japanese beauty, often seen in formal imperial attire and elegant kimono on ceremonial occasions |
Note: Private measurements such as height and weight are not officially released by the Imperial Household Agency.
Personal Life & Relationship
Princess Aiko is currently unmarried. There has been no confirmed information regarding a boyfriend or romantic relationship, as personal details of imperial family members are kept confidential and protected from speculation.
Despite being the only child of the Emperor, current Japanese succession laws permit only male-line heirs to ascend to the Chrysanthemum Throne. This situation has led to significant public discussion and debate about potential reforms to allow a female emperor in the future. Many citizens see Princess Aiko as a strong and modern figure capable of shaping the future image of the monarchy.
Net Worth and Income
There is no verified public information regarding Princess Aiko’s net worth. Members of the Imperial Family do not operate private commercial businesses or engage in profit-generating activities. Their living expenses and official duties are supported by imperial household allowances provided by the Japanese government. Any estimate of her personal net worth would be speculative and unconfirmed.
Trivia & Lesser-Known Facts
- Her name “Aiko” means “a child who loves others,” while her title “Toshi-no-Miya” symbolizes respect and integrity.
- Princess Aiko plays the cello and has participated in school orchestra performances.
- She experienced difficulties during childhood due to bullying and took time away from school before returning stronger and more confident.
- She was the first imperial grandchild born in the Heisei era.
- Her increasing popularity has strengthened public support for revising the male-only succession law.
Social Media Profiles
| Platform | Status |
|---|---|
| Not Available | |
| X (Twitter) | Not Available |
| Not Available |
Official public accounts: None; members of the Imperial Family traditionally do not use personal social media
Conclusion
Princess Aiko represents a new era for the Japanese Imperial Family—balancing tradition with modern values. At just 24 years old, she has already demonstrated maturity, intelligence, and dedication through her public service and educational achievements. As discussions about the future of Japan’s monarchy continue, many view her as a symbol of hope, progress, and cultural continuity. The coming years are expected to shape her role further, making her one of the most closely watched royal figures worldwide.
