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

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

1. The reasoning of the judgment of this court for the acceptance of the judgment of the court of first instance is as stated in the reasoning of the judgment of the court of first instance, except for the rejection of each of the evidence (including a serial number) in Article 17 to 20, which is submitted additionally in the trial and against the facts of recognition of the judgment of the court of first instance or lack of recognition of the defendant's assertion, and thus, it is acceptable in accordance with the main sentence of

2. In conclusion, the plaintiffs' claims against the principal lawsuit are justified, and all of them are dismissed as the defendant's counterclaim is without merit. The judgment of the court of first instance is just in conclusion, and all appeals against the principal lawsuit and counterclaim are dismissed as it is without merit. It is so decided as per Disposition.