1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

1. The plaintiff alleged that B construction work (hereinafter "construction work of this case") was contracted by the defendant for the first and second installments, and then changed the waterproof construction work to the second and second works scheduled for the first construction work. The plaintiff's construction work of the first 172 days of construction work due to the market error, design error, omission, design error, and the second 54 days of construction work, extended the construction period to 150,905,412 of construction cost under the local government's "general terms and conditions of construction contract" (7,493,520 won for extension of construction period, 73,41,892 won for the above 90,970, 980, 90, 97, 900, 97, 90, 97, 90, 309, 90, 90, 309, 90, 41, 892 won for employees of the plaintiff, the plaintiff, and the plaintiff's subcontractor were not obligated to pay the above work price to the plaintiff.

2. Facts of recognition;

A. On March 28, 2012, the Plaintiff entered into a contract with the Defendant for the first construction cost of KRW 2,358,881,440 during the instant construction period, and from March 29, 2012 to November 23, 2012, the Defendant and the construction period were first changed from March 29, 2012 to January 22, 2013, but the construction period was suspended from December 21, 2012 to March 3, 2013.

B. The instant construction project.