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

2. The costs of appeal shall be borne respectively by each party.

1. The reasons for the court’s explanation of this case are as follows: (a) evidence submitted in the trial and lack of recognition of the plaintiff’s assertion are as stated in the reasoning of the judgment of the court of first instance except for the rejection of I’s testimony by a witness of the court of first instance who is insufficient to recognize the plaintiff’s assertion; and (b) therefore, (c) this case’

2. In conclusion, the judgment of the first instance court is legitimate. Thus, the plaintiff's appeal and the appeal by the defendant B and C are dismissed as it is without merit.