Prince Hisahito Turns 20, Japan's Second in Line to Chrysanthemum Throne
AM730 · 2 SOURCESabout 4 hours ago6 MIN
Summary
Prince Hisahito of Akishino, Japan's second in line to the imperial throne, celebrated his 20th birthday on Sunday, marking a significant milestone in his transition to adult imperial duties. Since his coming-of-age ceremony in September 2025, the young prince has been steadily building his resume as an official representative of the Chrysanthemum Throne. A second-year student at Tsukuba University in Ibaraki Prefecture studying biology, Prince Hisahito has balanced his academic pursuits with a growing slate of public engagements, visiting six prefectures across Japan over the past year.
Key Points
- Prince Hisahito of Akishino (悠仁親王), eldest son of Crown Prince Fumihito (秋篠宮文仁親王), turned 20 on September 6, 2026
- He completed his coming-of-age ceremony in September 2025 and has since participated in palace events including the New Year's Poetry Reading Ceremony, court banquets, and conducted his first solo visits
- Currently a second-year student at Tsukuba University's Faculty of Life and Environmental Sciences, he studies biology and lives part-time in a rented apartment near campus
- In August, he visited the Peace Memorial Museum at Honikawa Elementary School in Hiroshima's Naka Ward, viewing exhibits about atomic bomb victims including testimony from survivor Sumitomori Kiyoko (居森清子)
- He participated in the Japan Scout Jamboree in Hiroshima Prefecture, delivering his first public speech and camping with peers his age
- Since childhood, he has conducted dragonfly research under the mentorship of Professor Ono Masato (小野正人), publishing an academic paper during high school
- He cultivates vegetables and rice at the Akasaka Imperial Estate in Tokyo and has joined a university research club studying birds, insects, and fungi
Why It Matters
Prince Hisahito's coming-of-age represents more than a personal milestone—it signals the gradual modernization of Japan's imperial succession, as he becomes the first male imperial family member born after World War II to enter active duty. His emphasis on peace education and environmental research, combined with his direct engagement with atomic bomb survivors, positions him as a potential moral voice for future generations, while his academic trajectory suggests the imperial family will continue its tradition of scholarly pursuits.
Prince Hisahito's coming-of-age represents more than a personal milestone—it signals the gradual modernization of Japan's imperial succession, as he becomes the first male imperial family member born after World War II to enter active duty. His emphasis on peace education and environmental research, combined with his direct engagement with atomic bomb survivors, positions him as a potential moral voice for future generations, while his academic trajectory suggests the imperial family will continue its tradition of scholarly pursuits.