1. All appeals filed by the Plaintiff (Counterclaim Defendant) are dismissed.

2. The costs of appeal shall be borne by the Plaintiff (Counterclaim Defendant).

1. The reasons for the court’s explanation concerning this case are as follows: (a) evidence submitted by the court of the first instance, which is insufficient to acknowledge the Plaintiff’s assertion that the Defendants did not perform the obligation under the contract of this case; and (b) the reasoning of the judgment of the court of the first instance is the same as the part of the judgment of the court of the first instance, except the rejection of the result of the party principal examination as to the Plaintiff

2. In conclusion, the plaintiff's claim against the defendants is dismissed as it is without merit. The plaintiff's claim against the defendant B against the plaintiff is justified within the scope of the above recognition and the remaining claim against the plaintiff is dismissed as it is without merit. The judgment of the court of first instance is justified as it is so decided, and all of the plaintiff's appeal is dismissed as per Disposition.