1.The judgment of the first instance shall be modified as follows:

The plaintiff (Counterclaim defendant)'s claim on the principal lawsuit is dismissed.

(b).

1. The reasoning for the court’s explanation of this case is as follows: (a) the first instance court’s reasoning is as follows; (b) the first instance court’s reasoning is as follows: (c) the first instance court’s reasoning is identical to that of the second instance court’s judgment; and (d) the second instance court’s reasoning is acceptable pursuant to the main text of Article 420 of the Civil Procedure Act.

2. 2) In light of the following circumstances, the Defendant, in accordance with the agreement with the Plaintiffs, removed pent natural rocks attached to the outer wall of the instant building from January 2, 2013 to February 8, 2013 and affixed tin on the outer wall of the said building. 4,680,00 won of the above construction cost. ① The building in this case was completed on June 26, 2012, and the building in this case was completed on June 26, 2012, with the Plaintiff’s natural outer wall attached to the building in this case with the Defendant’s natural outer wall attached to the building in this case and the Defendant’s natural outer wall attached to the building in this case without the Defendant’s natural outer wall attached to the building in this case. ② The construction cost in this case was additionally removed from the Defendant’s natural outer wall attached to the building in this case, with the Defendant’s natural outer wall attached to the building in this case.