1. The Defendant shall pay to the Plaintiff KRW 20,900,000 and the interest rate of KRW 15% per annum from September 29, 2016 to the day of complete payment.

1. The parties' assertion

A. On March 27, 2015, the Plaintiff asserted that the Defendant was awarded a subcontract to the Plaintiff for the Construction of New Equipment D Hospital D (hereinafter “instant Construction”) located in Daejeon-gu Daejeon-gu, Daejeon-gu, and completed the said subcontract, but the Defendant did not pay the instant construction cost. As such, the Plaintiff sought reimbursement of KRW 20,900,000 for the instant construction cost against the Defendant.

B. The defendant's assertion that the defendant ordered the pipeline construction including the construction of this case to F who actually operates E and did not subcontract the construction of this case to the plaintiff. Thus, the plaintiff is not liable to pay the construction price of this case to the plaintiff.

2. Determination of Gap 1, 2, 6 through 11, 13 evidence, Gap 3, and 4-1, 2-2 evidence, and testimony of witness F, the plaintiff entered into a subcontract agreement with the defendant as to the construction period between March 27, 2015 and November 18, 2015, the contract amount of 20,900,000 won (the supply price of KRW 19,000,000 and value-added tax 1,90,000,000) to the plaintiff (hereinafter referred to as the "contract of this case"), and the defendant entered into a subcontract agreement with the defendant as the representative at the site of executive director and the defendant's testimony of witness F. The plaintiff entered into a subcontract agreement with the defendant for the construction work of this case between the defendant and F. The defendant's agent at the site of the machinery and equipment construction work of this case, and the defendant entered into the construction work of 10,000,000 won under the name of the subcontract with the defendant 1.