1. The Plaintiff:

A. Defendant B Co., Ltd., within the limit of trust property, KRW 471,479,350 and its related thereto.

1. Basic facts

A. On October 2, 2012, the Plaintiff entered into a construction contract (hereinafter “instant contract”) with Defendant C, an executory company, and completed the construction work on September 15, 2014, with the content that the construction cost for the construction of the apartment complex F1 complex on the ground of Yeongdeungpo-gu Seoul Metropolitan Government (A) (hereinafter “instant apartment complex”) and the F2 apartment complex on the ground of G (C) (hereinafter “instant apartment complex”) is KRW 19.6 billion, the construction period is within KRW 19.61 billion, and the construction period is within 23 months from the date of the first withdrawal under the PF loan agreement (on October 17, 2012, the date of actual withdrawal), and the interest rate for delay in payment is 12% (hereinafter “instant contract”).

B. As to the new construction of an apartment complex F3 complex on H (B) ground (hereinafter “instant three apartment complex”), Defendant C agreed to newly construct the instant three complex apartment complex in lieu of the purchase price to the Korea Railroad Corporation, the owner of the instant one and the second apartment complex, and entered into a management-type land trust contract with Defendant B.

C. On October 9, 2012, the Plaintiff entered into a construction contract with Defendant B and Defendant C, a debtor for payment of substitutes, with respect to the instant three complex apartment construction, with the payment of the construction cost of KRW 19.54 billion, the construction period within 23 months from the date of commencement report (the date of commencement of the actual construction work, December 26, 2012), and the interest rate for delayed payment at 12%, and completed the construction completion procedure on November 21, 2014.

(A) The construction of each of the above paragraphs (a) and (c) (hereinafter referred to as “each of the instant works”). 【No dispute exists with the recognition of the ground, Gap’s No. 1, and Eul’s No. 2-3, and the purport of the whole pleadings.

2. The assertion and judgment

A. Of the respective construction process of the Plaintiff’s assertion, the construction cost was increased compared to each of the instant construction contracts entered into with the Defendants, due to the cause attributable to the Defendants.

Therefore, it is true.