Japan's Emperor Naruhito and Empress Masako arrived Friday in Osaka Prefecture ahead of this weekend's opening of the 2025 World Exposition, in which they are scheduled to attend an opening ceremony for the six-month-long event.The first day of the imperial couple's two-day stay in Osaka will see them visit Yumeshima, an artificial island that serves as the venue for the expo opening Sunday, to see the Grand Ring -- a vast wooden roof encircling the pavilions -- as well as the Japan Pavilion and the Osaka Healthcare Pavilion.On Saturday, the imperial couple will attend the opening ceremony …READ FULL ARTICLE