Jun-U Choi is also known as 최준우, Joon-Woo.
Jun-U Choi is male.

최준우
Appearing at the start of the series as a timid, gloomy and lonely guy, Jun-U thinks of himself as an 'outsider' and rarely ever felt that he fit in with the others at school. During the progression of the series, he is described as a selfless person, as he always goes out of his way to help the ones dearest to him.