1. The defendant (Counterclaim plaintiff)'s appeal is dismissed.

2. The costs of appeal are assessed against the Defendant-Counterclaim Plaintiff.

purport, purport, and.

1. The reasoning for the court’s explanation of this case is as follows: (a) the part concerning the reasons for the judgment of the court of first instance is as stated in the part concerning the first instance except for the misunderstanding set forth in Chapters 6, 11 through 8, and 5, respectively; (b) the Plaintiff and the Defendant determined the unit price for the outside design work at D site at KRW 3,500 per square hour; (c) the unit price for the outside design work at D site at KRW 3,500 per square hour was determined at KRW 40 per square hour; (d) the parties concerned were unable to dispute as to the facts that the 400 unit price per square hour was determined at KRW 7,00,000; (e) according to the witness F’s testimony at the first instance court, the Plaintiff and the Defendant did not have any significant effect on the conclusion of the contract at 18,500,000 won per square year, which is the first 7,000 witness’s statement of intention; and (e., the remaining part of the construction work at bar was calculated on the ground of this case.