1. The part concerning Defendant A and B among the judgment of the first instance, including the preliminary claim added by this court, is as follows.

1. Basic facts

A. The Plaintiff is a company with the objective of windows and miscellaneous steel construction business. Defendant A is the construction works for main complex buildings on the surface of north-gu Seoul Metropolitan Government and one parcel (hereinafter “G construction”), Defendant B is the construction works for apartment buildings and neighborhood living facilities on the ground of south-gu, and Defendant C is each the owner of the apartment construction works on the surface of North-gu, North-gu, and one parcel of land (hereinafter “E construction”) at the port of port.

B. On February 16, 2016, the Plaintiff entered into a contract with the Defendants to accept a subcontract for the Chang Chang Construction Co., Ltd. (hereinafter “Seoul Construction”) for the said respective construction works with KRW 180,494,560 for G construction works, KRW 359,76,632 for D construction works, KRW 278,968,980 for E construction works, and entered into a contract with the Defendants to accept a subcontract for each of the said respective construction works (hereinafter “each of the instant subcontracting works”).

C. While the Plaintiff performed each of the subcontracted projects in this case, the Defendants agreed on March 2, 2016 between the Plaintiff and Japan Construction and the Defendants’ direct payment of the subcontract price of this case to the Plaintiff.

On September 30, 2016, the Plaintiff completed the part of G construction among the instant subcontracted projects, and completed the part of the instant subcontracted projects on April 10, 2017, including additional construction works equivalent to KRW 17,417,528, at the request of Defendant B and Japan Construction. At the request of Defendant C and Japan Construction, the Plaintiff completed the part of E construction among each of the instant subcontracted projects, including additional construction works equivalent to KRW 26,014,00,00, as well as additional construction works equivalent to KRW 26,000.

E. On February 8, 2017, Il Chang Construction remitted KRW 200 million to the Plaintiff as construction cost (hereinafter “instant KRW 200 million”).

[Ground of recognition] As to Defendant A: The fact that there is no dispute as to Defendant B and C (Article 150(3) and (1) of the Civil Procedure Act), Gap evidence Nos. 1 through 7 (including paper numbers, hereinafter the same shall apply), Eul evidence No. 1, and the purport of the whole pleadings.