Emperor Naruhito delivers his speech during the enthronement ceremony where he officially proclaims his ascension to the Chrysanthemum Throne at the Imperial Palace in Tokyo on Tuesday, Oct. 22, 2019. (Kazuhiro Nogi/Pool Photo via AP)

Japan's Emperor Naruhito, left, and Empress Masako, right, wave, as they depart for the Imperial Palace for the court banquet, in Tokyo, Tuesday, Oct. 22, 2019. Japan's Naruhito proclaimed himself Emperor during an enthronement ceremony at the Imperial Palace, declaring himself the country's 126th monarch.(Ren Onuma/Kyodo News via AP)

Japan's Emperor Naruhito attends a ceremony to proclaim his enthronement to the world, called Sokuirei-Seiden-no-gi, at the Imperial Palace in Tokyo, Japan, Tuesday, Oct. 22, 2019. (Issei Kato/Pool Photo via AP)

Japan's Emperor Naruhito, center, leaves at the end of the enthronement ceremony where he officially proclaimed his ascension to the Chrysanthemum Throne at the Imperial Palace in Tokyo, Tuesday, Oct. 22, 2019. (Kazuhiro Nogi/Pool Photo via AP)

Japanese Empress Masako leaves the ceremony hall after Emperor Naruhito proclaimed his enthronement at the Imperial Palace in Tokyo, Tuesday, Oct. 22, 2019. (Kimimasa Mayama/Pool Photo via AP)

Japan's Prime Minister Shinzo Abe raises his hands as he shouts "banzai" or cheers in front of Emperor Naruhito during a ceremony to proclaim Emperor Naruhito's enthronement to the world, called Sokuirei-Seiden-no-gi, at the Imperial Palace in Tokyo, Japan, Tuesday, Oct. 22, 2019. (Issei Kato/Pool Photo via AP)

Japan's Emperor Naruhito speaks as Prime Minister Shinzo Abe bows during a ceremony to proclaim his enthronement to the world, called Sokuirei-Seiden-no-gi, at the Imperial Palace in Tokyo, Japan, Tuesday, Oct. 22, 2019. (Issei Kato/Pool Photo via AP)

Emperor Naruhito waves as he leaves the Imperial Palace after the enthronement ceremony, Tuesday, Oct. 22, 2019, in Tokyo, Japan. (AP Photo/Eugene Hoshiko)

Holding nationals flags, people line up and wait outside of the Imperial Palace during the enthronement ceremony for Emperor Naruhito Tuesday, Oct. 22, 2019, in Tokyo. (AP Photo/Eugene Hoshiko)

People outside of the Tokyo Imperial Palace follow Prime Minister Shinzo Abe's three "banzai" cheers for the 59-year-old Emperor Naruhito during the enthronement ceremony, Tuesday, Oct. 22, 2019, in Tokyo, Japan. (AP Photo/Eugene Hoshiko)

A Yomiuri newspaper worker hands a copy of the extra edition reporting the enthronement ceremony for the 59-year-old Emperor Naruhito Tuesday, Oct. 22, 2019, in Tokyo, Japan. (AP Photo/Aaron Favila)

Japan's Emperor Naruhito, in a white robe, leaves after praying at “Kashikodokoro”, one of three shrines at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Emperor Naruhito visited three Shinto shrines at the Imperial Palace before proclaiming himself Japan’s 126th emperor in an enthronement ceremony. (Kyodo News via AP)

Japan's Empress Masako leaves after praying at “Kashikodokoro”, one of three shrines at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Emperor Naruhito and Empress Masako visited three Shinto shrines at the Imperial Palace before Naruhito proclaims himself Japan’s 126th emperor in an enthronement ceremony. (Kyodo News via AP)

Japan's Emperor Naruhito, in a white robe, visits “Kashikodokoro”, a shrine at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Emperor Naruhito visited three Shinto shrines at the palace before proclaiming himself Japan’s 126th emperor in an enthronement ceremony. (Kyodo News via AP)

Japan's Crown Prince Akishino, right, and Crown Princess Kiko, second from right, arrive for the ceremony at "Kashikodokoro", one of three shrines at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Emperor Naruhito and Empress Masako visited three Shinto shrines at the Imperial Palace before Naruhito proclaims himself Japan’s 126th emperor in an enthronement ceremony. (Kyodo News via AP)

Japan's Prime Minister Shinzo Abe arrives for the ceremony at "Kashikodokoro", one of three shrines at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Emperor Naruhito and Empress Masako visited three Shinto shrines at the Imperial Palace before Naruhito proclaims himself Japan’s 126th emperor in an enthronement ceremony. (Kyodo News via AP)

Britain's Prince Charles attends the enthronement ceremony of Japan's Emperor Naruhito at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Japan's Naruhito proclaimed himself Emperor during an enthronement ceremony at the Imperial Palace, declaring himself the country's 126th monarch.(Kyodo News via AP)

China's Vice President Wang Qishan attends the enthronement ceremony of Japan's Emperor Naruhito at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Japan's Naruhito proclaimed himself Emperor during an enthronement ceremony at the Imperial Palace, declaring himself the country's 126th monarch.(Kyodo News via AP)

Japan's Crown Princess Kiko leaves at the end of the enthronement ceremony where Emperor Naruhito officially proclaimed his ascension to the Chrysanthemum Throne at the Imperial Palace in Tokyo, Tuesday, Oct. 22, 2019. (Kazuhiro Nogi/Pool Photo via AP)

Britain's Prince Charles arrives for the Imperial Palace to attend the enthronement ceremony of Japan's Emperor Naruhito in Tokyo, Tuesday, Oct. 22, 2019. Japan's Naruhito proclaimed himself Emperor during an enthronement ceremony at the Imperial Palace, declaring himself the country's 126th monarch.(Kyodo News via AP)

Hong Kong's Chief Executive Carrie Lam attends the enthronement ceremony of Japan's Emperor Naruhito at the Imperial Palace, in Tokyo, Tuesday, Oct. 22, 2019. Japan's Naruhito proclaimed himself Emperor during an enthronement ceremony at the Imperial Palace, declaring himself the country's 126th monarch.(Kyodo News via AP)

President of Afghanistan, Ashraf Ghani, and his wife Rula Ghani leave after attending the Enthronement Ceremony Of Emperor Naruhito of Japan at the Imperial Palace, Tuesday, Oct. 22, 2019, in Tokyo. (Carl Court/Pool Photo via AP)