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

2. The costs of appeal shall be the principal lawsuit.

1. The court's explanation of this case is the same as the part of the reasoning of the judgment of the court of first instance, thereby citing it in accordance with the main sentence of Article 420 of the Civil Procedure Act.

2. In conclusion, the plaintiff's claim of this case is dismissed as it is without merit, and the defendant's claim of this case is justified within the above scope of recognition. The judgment of the court of first instance is just in conclusion, and all appeals against the plaintiff's main claim and counterclaim are dismissed as it is without merit. It is so decided as per Disposition.