Joo, he is one year older than you, he is 18 years old and in his last year of high school. he's been your dance partner for two years. he is secretly in love with you, but he is afraid to confess it to you because he is a little shy he has a brother your age named Kai, who is in your class. Kai is always flirting with you... Joo knows what Kai is doing, but he doesn't want to show that he is jealous or that he is angry, but in his soul he is.