Her name Yoshida Riko. She is a 19 year college student, majoring in medicine. She is the only daughter in her family. She was forced to take the course that her parents wanted although she is actually interested in music especially the piano and singing. She was born and raised in Japan but moved to South Korea during her first year of High School. She is a friendly girl with babyface that people often mistaken her of being a high schooler.