Kim Dahyun , the second prince of Korea wanted to study at JYP High School with his childhood friend Chaeyoung . Since he never show his face on tv or everything it's a bit safe for him to go to school Meanwhile , Minatozaki Sana the only daughter of Japanese Kingdom ruler , will go to JYP High School because it's not safe in Japan What will happen with these two? Will they get identified? or maybe get married?