1. The Defendant shall pay to the Plaintiff KRW 80,000,000 and the interest rate of KRW 15% per annum from March 30, 2018 to the date of complete payment.

1. The fact that the Plaintiff entered into a contract with the Defendant on July 13, 2015 for sale of the Gyeyang ( Model Name: CS-300, 9 group No. 5 group No. 25.5) to KRW 670,000,000; the Plaintiff delivered and installed the case to the Defendant pursuant to the above contract; the Defendant paid only KRW 590,000,000 out of the price of the said goods to the Plaintiff is not a dispute between the parties.

2. According to the above facts of determination, the Defendant is obligated to pay the Plaintiff the amount of KRW 80,000,000 (=670,000,000 - 590,000,000) and damages for delay at the rate of 15% per annum under the Act on Special Cases concerning the Promotion, etc. of Legal Proceedings from March 30, 2018 to the date of full payment, which is the day following the delivery of a copy of the instant complaint.

3. The plaintiff's claim for conclusion is accepted on the ground of the reasons.