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

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

1. The reasoning of the judgment of the court of first instance cited by the court of first instance is as follows: (a) evidence additionally submitted by the court of first instance, which is insufficient to accept the Plaintiff’s assertion; and (b) the reasoning of the judgment is the same as the ground of the judgment of the court of first instance, except for the rejection of the written evidence No. 12-14 (including paper numbers)

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