1. The plaintiffs' appeal and the plaintiffs' claims added by this court are all dismissed.

2. After an appeal is filed.

1. The reasoning stated in this part of this Court is that the corresponding part of the judgment of the court of first instance is the same, except for the addition as follows. Thus, this part of this Court’s reasoning is cited including summary language under the main sentence of Article 420 of the Civil Procedure Act.

The following shall be added at the end below the second end of the judgment of the first instance:

D. On March 11, 2014, each forest of the instant case was registered the establishment registration of a mortgage (hereinafter collectively referred to as the “registration of a mortgage of each of the instant case”) consisting of the following: (a) on March 11, 2014, the establishment registration of a mortgage (hereinafter referred to as the “registration of a mortgage”) consisting of the collective mortgagee L group, debtor, the maximum debt amount of 516,000,000; and (b) on May 24, 2019, M, the debtor, the maximum debt amount of 170,000,00

2. The parties' assertion

A. At the time of the instant sales contract, the Defendant agreed to remove each of the instant graves to the Plaintiffs by August 30, 2017, and on the other hand, the establishment registration of each of the instant forests exists in each of the instant forests.

Therefore, at the same time, the Defendant received the remainder of KRW 380,000 from the Plaintiffs, and conducted the procedure for registration of cancellation of the establishment registration of the establishment of each of the instant neighboring forests, and completed the procedure for registration of transfer of equity ownership for each of the instant forests on April 10, 2017, and completed the procedure for registration of cancellation of the establishment registration of each of the instant forests. The Defendant is obligated to remove each of the instant forests.

B. Defendant 1 did not have agreed to remove each of the instant graves at the time of the instant sales contract. (2) The Defendant sent, on December 11, 2017, a content-certified mail, stating that “if the payment of the remainder is notified and the balance is not paid by December 15, 2017, the sales contract of this case will be rescinded without any separate notice,” while preparing documents necessary for the registration of transfer of ownership, the Defendant did not perform the obligation to pay the remainder.

The sales contract of this case was lawfully rescinded due to the delay of the plaintiffs' performance.

3. Each of the instant cases to the Defendant.