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

2. The costs of appeal and the incidental costs of appeal shall be individually considered.

1. The reasoning of the judgment of the court of first instance citing this case is the same as that of the judgment of the court of first instance, and thus, it is acceptable to cite this case according to the main sentence of Article 420

(Evidence) According to the evidence submitted, it is reasonable to find and determine the facts regarding the ratio of negligence of the plaintiff in the first instance and the ratio of loss of ability to be employed by the defendant. The defendant did not submit a written reason for incidental appeal by the closing date of argument in this court, and the head of the incidental appeal does not contain any content that can be interpreted as an incidental appeal.