1. The Defendants jointly share KRW 81,122,560 with respect to the Plaintiff and the period from November 12, 2013 to July 14, 2015.

1. As to the cause of the claim, Defendant A operates a construction business with the trade name “B” from August 9, 2010; Defendant B Co., Ltd. is a company established on June 10, 2013 for the purpose of the engineering work, etc., and its representative director is Defendant A; the Plaintiff supplied the Defendants with ready-mixed equivalent to KRW 365,29,50 from October 13, 201 to November 11, 2013; the Defendants paid KRW 284,176,990 among the above ready-mixed prices to the Plaintiff; and the Defendants paid KRW 284,56,90 to the Plaintiff by adding the overall purport of oral arguments from the date following the date of delivery of evidence Nos. 2 through 5 to the date of payment of KRW 81,12,560 won to the Plaintiff; and the Defendants jointly paid KRW 360,565,900 to the Plaintiff 20.15% annual delay damages from the date of payment; and 20.1.5%

2. As to the Defendants’ assertion, the Defendants asserted to the effect that the Plaintiff’s claim of this case was unjustifiable, so it is not sufficient to recognize the above assertion solely on the lives, the video of the evidence No. 2, and the testimony of the witness C, and there is no other evidence to acknowledge it. Thus, the Defendants’ assertion is without merit.

3. The plaintiff's claim is justified within the scope of the above recognition, and the remaining claims are dismissed as they are without merit.