1. The plaintiff's appeal and the defendant's incidental appeal are dismissed, respectively.

2. Costs arising from an appeal and an incidental appeal shall be respectively.

1. The reasoning of the court's explanation of this case is the same as that of the part concerning the reasoning of the judgment of the court of first instance, and thus, this is acceptable in accordance with the main sentence of Article 420 of the Civil Procedure Act.

2. As such, the plaintiff's claim of this case is justified within the scope of the above recognition, and the remaining claims are dismissed as it is without merit. The judgment of the court of first instance is just in conclusion, and the plaintiff's appeal and the defendant's incidental appeal are all dismissed as it is without merit. It is so decided as per Disposition.