1. All appeals filed by the Defendant (Counterclaim Plaintiff) against the principal lawsuit and counterclaim are dismissed.

2. The costs of appeal shall be principal lawsuit and counterclaim.

1. The reasons for the court's explanation concerning this case are as follows: (a) the plaintiff in Part 3 of the judgment of the court of first instance is dismissed as "the defendant"; and (b) Eul, which is insufficient to recognize the defendant's assertion as evidence additionally submitted in the court of first instance, is the same as the reasons for the judgment of the court of first instance; and (c) thus, it is acceptable in accordance with the main sentence of Article 420 of the Civil Procedure Act.

2. The conclusion is that the plaintiff's principal lawsuit and the defendant's counterclaim are justified within the scope of each recognition, and each of the remaining claims shall be dismissed as it is without merit. The judgment of the court of first instance is just, and the defendant's appeal against the principal lawsuit and counterclaim is dismissed as it is so decided as per Disposition.