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

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

1. The reasoning of the court's explanation concerning this case is as follows: (a) No. 2, No. 3-1, and No. 7, which are not sufficient to recognize the defendant's assertion as evidence submitted in the trial of the court of first instance; and (b) the reasoning of the judgment of the court of first instance is as stated in the main sentence of Article 420 of the Civil Procedure Act, with the exception of rejecting additional statements and videos of No. 2,

2. If so, the plaintiff's claim of the principal lawsuit is justified, and the defendant's claim of the counterclaim is dismissed as it is without merit. The judgment of the court of first instance is just in conclusion, and the defendant's appeal of the principal lawsuit of this case and the counterclaim of this case is dismissed as it is without merit. It is so decided as per Disposition.