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

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

1. The grounds for appeal by the plaintiff citing the judgment of the court of first instance are not significantly different from the allegations in the court of first instance, and it is difficult to change the fact-finding and judgment of the court of first instance even if each evidence submitted to the court of first instance was presented to this court.

Therefore, the reasoning of the judgment of this court is identical to that of the judgment of the court of first instance, and it is accepted by the main text of Article 420 of the Civil Procedure

2. The plaintiff's main claim is dismissed as it is without merit, and the defendants' counterclaim claim shall be accepted with merit.

The judgment of the court of first instance is justifiable in its conclusion, and all appeals against the principal lawsuit and counterclaim of this case are dismissed.