Japan's 126th emperor wore a morning coat to make the brief appearance on a glass-covered balcony of the Imperial Palace in central Tokyo, along with other adult royals including Empress Masako.
Naruhito will also face the challenge of continuing his father's legacy while maintaining Japanese traditions that stretch back centuries
It will mark the end of the current Heisei era, which began when Akihito ascended the throne in 1989.
US President Donald Trump on Monday met Japanese Emperor Akihito and held a joint press conference with Prime Minister Shinzo…
