Prince Hisahito, the nephew of Emperor Naruhito and second in line to the Japanese imperial throne, turned 17 on Wednesday as he continues to thrive in his second year of senior high school.The son of Crown Prince Fumihito and Crown Princess Kiko is enrolled at Senior High School at Otsuka, University of Tsukuba, where he has been actively involved in his studies, club activities and events with his peers, including friends from outside his class.Prince Hisahito is the first member of the imperial family in the postwar era to attend a high school unaffiliated with Gakushuin University, esta…READ FULL ARTICLE