Cube Entertainment has lodged a complaint with the prosecution office for the illegal leak and circulation of B2ST's new music.  

The legal circles have revealed on June 26 that the agency lodged a complaint two days earlier at the Seoul Central District Prosecutor's Office, claiming a violation of copyright law through the illegal circulation of the music from B2ST's sixth mini-album 'Good Luck.'

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Supposedly, on June 14, two days before the release of the album, the songs were leaked.  Attorney Son Su Ho told StarNews, "The agency came to understand the leaked course and the exact account of the situation, so filed a complaint.  Not only will a strict legal responsibility be enforced but this will also be taken care of in a firm manner."