Prince Hisahito, the nephew of Emperor Naruhito and second in line to the Japanese imperial throne, turned 15 on Monday as his school activities continued to be affected by the coronavirus pandemic.

The son of Crown Prince Akishino is currently a third-year student at Ochanomizu University Junior High School. He is the only heir of his generation as the Imperial House Law states that only males with male lineal descent from emperors can ascend the chrysanthemum throne.

Next spring, the young prince is expected to enter a high school not affiliated with Ochanomizu University, as the high school attached to the university is an all-girls school. The pandemic has forced the cancellation of the junior high school's school trips and the prince took some online classes, according to the Imperial Household Agency.