I thought it was a little risky to produce a BL series that revolves around jazz music, which probably isn't really the most favourite genre among typical BL viewers. So I was surprised that it has become a huge success, thanks to a good script that makes viewers understand the characters' background and development. Needless to say that the soundtrack is one of the main assets of this series. Transfer student Se Heon loves and plays jazz, reminding Tae I (Ji Ho Geun) of his brother, a jazz pianist, too, who committed suicide. Se Heon (Kim Jin Kwon) suffers under the strict regime of his…