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

2. The appeal costs.

1. The reasoning of the judgment of this court citing the judgment of the court of first instance is the same as that of the judgment of the court of first instance, except where the "15% per annum" under the 4th sentence of the judgment of the court of first instance is deemed "15% per annum as prescribed by the Act on Special Cases concerning Expedition, etc. of Legal Proceedings." Thus, it is acceptable in accordance with the main

2. In conclusion, the judgment of the court of first instance is just, and all appeals filed by the defendants as to the principal lawsuit and counterclaim of this case are dismissed as it is without merit. It is so decided as per Disposition.