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

2. The costs of appeal and incidental appeal shall be respectively considered.

1. The defendant's grounds for appeal citing the judgment of the court of first instance and the plaintiff's grounds for incidental appeal are not significantly different from the allegations in the court of first instance. In light of the evidence submitted in the court of first instance, fact-finding and judgment of the court of

Therefore, the court's explanation on the instant case is identical to the reasoning of the judgment of the court of first instance, and thus, citing it as it is by the main text of Article 420 of the Civil Procedure Act.

2. In conclusion, the judgment of the court of first instance is justifiable. Thus, the defendant's appeal and the plaintiff's incidental appeal are dismissed. It is so decided as per Disposition.