1. The defendant,

A. From February 1, 2009, Plaintiff I paid KRW 366,785 to Plaintiff I, and from February 1, 2009, Plaintiff V, W, X,Y, and Z.

1. Basic facts

A. The plaintiffs (excluding plaintiffs 5, W, X, Y, Z) and the above network R, network R, and network AA (hereinafter referred to as "net R, network R, and network A"), except the successors of the deceased AA, and both plaintiffs, network R, and network AA (hereinafter referred to as "the plaintiff, etc.") have entered into an employment contract with the defendant, and work as a street cleaners, the retired manager B, and D as the retired manager from the date stated in the "date of entry" column of the cited amount sheet.

A person who was retired from office on the date of retirement stated in the same list as the date of retirement, or has been employed until now, is a person who has joined the National Democratic Union Trade Union (hereinafter referred to as the “instant trade union”).

B. The Ministry of the Interior (Ministry of the Interior) concluded a collective agreement and its contents 1) the Ministry of the Interior (Ministry of the Interior) shall allow each local government to decide wages on their street cleanerss themselves from 2006, while it shall be referred to each local government as necessary to refer them to the “Guidelines on the Compilation of Budget of Personnel Expenses for Environmental Definites

A) The Defendant prepared the instant trade union. The Defendant agreed to determine the wages of commercial workers including street cleaners through collective negotiations with the instant trade union, and agreed to comply with the guidelines of the Ministry of Government Administration and Home Affairs with respect to street cleaners. 2) The following is related to the Plaintiffs’ claims among the Defendant and the instant trade union in 2007, the collective agreement concluded in 2009 (hereinafter “each collective agreement of this case”), the guidelines of the Ministry of Government Administration and Home Affairs in 2007 and 2008, the guidelines of the Defendant’s provision of the Ordinance of the Ministry of Government Administration and Home Affairs (hereinafter “each collective agreement of this case”), the “Rules on the Management of Lifetime in Lighting Workers,” and the “Rules on the Management of Office in Lighting Workers in 207” (hereinafter collectively referred to as “instant collective agreement, etc.”).