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

2. The costs of appeal shall be the principal office and the principal office.

The court's reasoning is the same as that of the judgment of the court of first instance. Thus, the court's reasoning is cited in accordance with the main sentence of Article 420 of the Civil Procedure Act.

Therefore, the plaintiffs' claims are dismissed as it is without merit, and the defendant's claims for counterclaim are justified within the scope of the above recognition, and the remaining claims for counterclaim shall be dismissed as it is without merit. The judgment of the court of first instance is just, and the plaintiffs' appeal is dismissed as it is without merit. It is so decided as per Disposition.