Prince Hisahito, nephew of Emperor Naruhito, turned 19 and took part in a coming-of-age ceremony at the Imperial Palace in Tokyo. He received a crown and promised to take his duties seriously as a member of the royal family.

Hisahito is second in line to the throne, after his father, Crown Prince Akishino. Japan's succession rules allow only men to become emperor, even though many people support the idea of a female ruler, like Princess Aiko. The debate continues, but tradition is strong.

For now, Hisahito's role is clear, but in the future he may face pressure to marry and continue the royal family line.