Princess Kako, the niece of Emperor Naruhito, turned 25 on Sunday, following a year marked by her graduation from university and her first official overseas trip.The younger daughter of Crown Prince Fumihito graduated in March from International Christian University in Tokyo, where she majored in psychology, and has since devoted herself to official duties as an adult member of the Japanese imperial family.The princess embarked on an 11-day trip to Austria and Hungary in September to mark the 150th anniversary of Japan's diplomatic ties with the countries.During her trip, she met with the c…READ FULL ARTICLE