Classmate Ent.

Classmate Entertainment (클라스메이트 엔터테인먼트) is a Korean-Japanese entertainment company that was established in 2006. It is best known for having Japanese pop female group Twogether, Korean groups Poison and DBD (Don't Back Down), and Korean solo artists Inja and Kim Jung. It is known as "The company right above Cube in terms of joining the Big Three."