SEOUL (THE KOREA HERALD/ASIA NEWS NETWORK) - K-pop boy band B.A.P filed a lawsuit against their agency TS Entertainment on Thursday, demanding termination of their contracts, a local news outlet reported.

The six members of B.A.P - Bang Yongguk, Kim Himchan, Jung Daehyun, Yoo Youngjae, Moon Jongup and Zelo - submitted legal documents to the Seoul Western District Court on Wednesday to nullify the exclusive contracts that they had signed with the agency in March 2011.

The idols cited the unfair contract that only benefits the label as the reason behind their decision to sue the agency.

They described the contract as a "slave contract."

They took issue mainly with the unreasonably long seven-year contract, invasion of privacy, exploitation of basic rights and unjust distribution of profits from their work.

The group claimed that since their debut in January 2012, each member has brought home only 18 million won (S$21,172) though they made about 10 billion won for their activities at the K-pop scene.

TS Entertainment has yet to announce its stance on the group's legal action.