1. All appeals filed by the plaintiff and the defendant are dismissed.

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

The purport of the claim and appeal is the purport of the appeal.

1. The reasoning for this part of the judgment of the court of first instance is the same as that of the corresponding part of the judgment of the court of first instance, thereby citing it as it is in accordance with the main sentence of Article 420

An abbreviationd name established in the judgment of the first instance is also used below the same.

2. Judgment on the parties' arguments

A. On October 17, 2016, the Plaintiff asserted that the loan amount of KRW 20 million was lent to the Defendant around October 17, 2016 without fixing the period of repayment. Thus, the following circumstances acknowledged by the evidence, i.e., ① the Plaintiff, on December 13, 2016, prepared a loan certificate of KRW 19.4 million against the Defendant, which the Plaintiff asserted as the loan amount of KRW 20 million, and the Plaintiff did not provide any explanation as to the reasons for not preparing the loan certificate, ② the Plaintiff’s wife transferred the loan amount of KRW 10,000 to the Defendant on May 17, 2016, KRW 200,000,000,000,000,000 to KRW 200,000,000,000,000,000,000,000 won was insufficient, and the Plaintiff’s loan amount of KRW 1600,000,00.