Just recently, a manga called, An Analysis of the KPop Boom Lies which is according to the authors of the said manga is based on the information that they acquired which depicts the "dirty" side of the Korean music industry.
The manga shows former Korean girl group idols-turned-hostesses revealing dirty secrets regarding the Korean music industry. The said manga even talks about the suicide of Korean actress, Jang Ja-yeon, last year. Jang claimed in her suicide note that she had been forced into sex with top figures in the entertainment and business world.
The manga repeats words such as “suicide,” “lobby” and “corruption” and “sex-for-favor,” which is intended according to netizens, to ruin the image of the Korean entertainment industry and the Hallyu boom in Japan.
Popular Korean idol groups such as, Girls' Generation and KARA appeared in the manga with their trademark outfits and their names. Their respective agencies are considering measures to deal with the said manga. Girls’ Generation’s agency SM Entertainment reportedly said they are currently in discussion with lawyers in Japan to take strong countermeasures.
Source: Korean Herald
If the guy who wrote the manga can give us a solid evidence regarding this post, then I might believe on what they said. But if it is just based on the fragment of their imagination, then I have every right in getting angry on them. Seriously, it is childish to get pissed on one music genre which is based on JPop!