Japan's Emperor Naruhito and Empress Masako attend a memorial service ceremony marking the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Participants, including Japan's Prime Minister Fumio Kishida, Emperor Naruhito and Empress Masako, attend a memorial service ceremony marking the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Emperor Naruhito and Empress Masako bow during a memorial service ceremony marking the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Emperor Naruhito and Empress Masako attend a memorial service ceremony marking the the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Prime Minister Fumio Kishida bows in front of Emperor Naruhito and Empress Masako as they attend a memorial service ceremony marking the the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Emperor Naruhito and Empress Masako bow as they attend a memorial service marking the 78th anniversary of Japan's surrender in World War Two at Nippon Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Prime Minister Fumio Kishida bows as Emperor Naruhito and Empress Masako acknowledge during a memorial service ceremony marking the the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Prime Minister Fumio Kishida walks past in front of Emperor Naruhito and Empress Masako as they attend a memorial service ceremony marking the the 78th anniversary of Japan's surrender in World War Two, at Budokan Hall in Tokyo, Japan August 15, 2023. REUTERS/Issei Kato 

Japan's Emperor Naruhito and Empress Masako pay their respects during a wreath laying ceremony at the Kalibata national heroes cemetery in Jakarta on June 20, 2023. Adek Berry/Pool via REUTERS 

Japan's Emperor Naruhito and Empress Masako pay their respects during a wreath laying ceremony at the Kalibata national heroes cemetery in Jakarta on June 20, 2023. Adek Berry/Pool via REUTERS 

Japan's Emperor Naruhito and Empress Masako react as they visit Bogor Botanical Gardens with Indonesian President Joko Widodo and First Lady Iriana Widodo, upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito talks with Indonesian President Joko Widodo as they visit Bogor Botanical Gardens along with First Lady Iriana Widodo and Empress Masako, upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Empress Masako looks on during a press conference by Japan's Emperor Naruhito and Indonesian President Joko Widodo at Bogor Botanical Gardens, upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito, along with Empress Masako, reacts as they visit Bogor Botanical Gardens accompanied by Indonesian President Joko Widodo and First Lady Iriana Widodo upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito and Empress Masako react as they visit Bogor Botanical Gardens with Indonesian President Joko Widodo and First Lady Iriana Widodo, upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Indonesian President Joko Widodo and Japan's Emperor Naruhito walk during their visit to Bogor Botanical Gardens along with Empress Masako and First Lady Iriana Widodo, in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito speaks as Indonesian President Joko Widodo listens along with First Lady Iriana Widodo and Empress Masako, during a press conference upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito shakes hands with Indonesian President Joko Widodo following a press conference upon their meeting in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Indonesian President Joko Widodo talks as Japan's Emperor Naruhito reacts, during their visit to Bogor Botanical Gardens along with First Lady Iriana Widodo and Empress Masako, in Bogor, Indonesia, June 19, 2023. REUTERS/Willy Kurniawan/Pool 

Japan's Emperor Naruhito accompanied by Empress Masako and Indonesian President Joko Widodo and Iriana Joko Widodo plant trees at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Empress Masako accompanied by her husband Emperor Naruhito and Iriana Joko Widodo accompanied by her husband Indonesian President Joko Widodo plant trees at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Emperor Naruhito accompanied by Empress Masako and Indonesian President Joko Widodo and Iriana Joko Widodo plant trees at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Emperor Naruhito accompanied by Empress Masako talk to Indonesian President Joko Widodo and Iriana Joko Widodo upon their meeting at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Emperor Naruhito accompanied by Empress Masako and Indonesian President Joko Widodo (R) and Iriana Joko Widodo plant trees at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Emperor Naruhito accompanied by Empress Masako talk to Indonesian President Joko Widodo and Iriana Joko Widodo upon their meeting at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Emperor Naruhito accompanied by Empress Masako talk to Indonesian President Joko Widodo and Iriana Joko Widodo as they plant trees at Presidential Palace in Bogor, Indonesia, 19 June 2023. ADI WEDA/Pool via REUTERS 

Japan's Empress Masako, Japan's Emperor Naruhito, Indonesian President Joko Widodo, and first lady Iriana, share a light moment during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko Widodo and Japan's Emperor Naruhito walk together during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Japan's Empress Masako, Japan's Emperor Naruhito, Indonesian President Joko Widodo, and first lady Iriana, share a light moment during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko Widodo and Japan's Emperor Naruhito chat during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Japan's Empress Masako, Japan's Emperor Naruhito, Indonesian President Joko Widodo, and first lady Iriana, share a light moments during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko Widodo and Japan's Emperor Naruhito walk together during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Japan's Empress Masako, Japan's Emperor Naruhito, Indonesian President Joko Widodo, and first lady Iriana, share a light moment during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko widodo (R) helps Japan's Emperor Naruhito (2nd R) to wash his hands while first lady Iriana (2nd L) and Japan's Empress Masako (L) wait after a tree planting ceremony at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Japan's Empress Masako, Japan's Emperor Naruhito, Indonesian President Joko Widodo, and first lady Iriana, share a light moment during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko widodo drives Japan's Emperor Naruhito, first lady Iriana, and Japan's Empress Masako on a golfcart during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko widodo drives Japan's Emperor Naruhito, first lady Iriana, and Japan's Empress Masako on a golfcart during their meeting at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Indonesian President Joko widodo (R), Japan's Emperor Naruhito (2nd R), first lady Iriana (2nd L), and Japan's Empress Masako (L) walk together after tree planting ceremony at Presidential Palace, in Bogor, on June 19, 2023. BAY ISMOYO/Pool via REUTERS 

Japan's Emperor Naruhito listens to Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito walks down the stairs during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito listens to Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya as he looks at pictures on the wall during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito talks to Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito looks at a map as he talks to Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito listens to Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya during a visit at a Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito looks at a water pumping facility that was supported by the Japanese government as he is accompanied by Japan International Cooperation Agency (JICA) expert on integrated water resources management Kikuta Tomoya during a visit at Pluit water pump station in Jakarta, Indonesia, 18 June 2023. MAST IRHAM/Pool via REUTERS 

Japan's Emperor Naruhito and Empress Masako walk on the red carpet during their arrival at the hotel in Jakarta, Indonesia, June 17, 2023. Dita Alangkara/Pool via REUTERS 

Japan's Emperor Naruhito and Empress Masako greet Japanese students after their arrival at the hotel in Jakarta, Indonesia, June 17, 2023. Dita Alangkara/Pool via REUTERS 

Japan's Emperor Naruhito and Empress Masako arrive at their hotel in Jakarta, Indonesia, June 17, 2023. Dita Alangkara/Pool via REUTERS 

Empress Masako and Japan's Emperor Naruhito look on from a car after their arrival at the Soekarno-Hatta Airport in Tangerang, on the outskirts of Jakarta, Indonesia, June 17, 2023. REUTERS/Ajeng Dinar Ulfiana/Pool 

Indonesia's Minister of Public Works and Public Housing Basuki Hadimuljono talks with Japan's Emperor Naruhito and Empress Masako after their arrival at the Soekarno-Hatta Airport in Tangerang, on the outskirts of Jakarta, Indonesia, June 17, 2023. REUTERS/Ajeng Dinar Ulfiana/Pool 

Japan's Emperor Naruhito and Empress Masako arrive at the Soekarno-Hatta Airport in Tangerang, on the outskirts of Jakarta, Indonesia, June 17, 2023. REUTERS/Ajeng Dinar Ulfiana/Pool 

Japan's Emperor Naruhito and Empress Masako arrive at the Soekarno-Hatta Airport in Tangerang, on the outskirts of Jakarta, Indonesia, June 17, 2023. REUTERS/Ajeng Dinar Ulfiana/Pool 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito arrives to attend a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito attends a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS 

Japan's Emperor Naruhito arrives for a press conference at the Imperial Palace in Tokyo, Japan on June 15, 2023, ahead of his planned visit to Indonesia. YUICHI YAMAZAKI/Pool via REUTERS