1. The plaintiffs' appeal is dismissed.

2. The costs of appeal are assessed against the Plaintiffs.

Purport of claim and appeal

The first instance court.

The reasoning of the court's explanation of this case is as stated in the reasoning of the judgment of the court of first instance, except for the modification of some of the contents as set forth in paragraph (2) below. Thus, it is acceptable in accordance with the main sentence of Article 420 of the Civil Procedure Act.

The following is added to the part of the judgment of the first instance court that revised the part "(the plaintiff received an intermediate payment from a financial institution and paid an intermediate payment to the defendants)" under the second sentence at the bottom of the judgment of the first instance. The defendants paid the part of the plaintiffs' intermediate payment to the financial institution on November 29, 2017. The defendants pay the part of the contract and intermediate payment to the financial institution on the 6th, 12, 18, 7, 4-5 of the judgment of the first instance court, "the contract and intermediate payment" in the 7th, 11-12 of the judgment of the first instance to 7th, 7th and 12 of the judgment of the first instance, "the contract and intermediate payment are returned, and there is a duty to return the contract money," and the part of the judgment of the first instance to "the contract money and intermediate payment pursuant to the agreement are returned," and all of the judgment of the plaintiffs are dismissed as the judgment of the first instance and the judgment of the first instance are without merit.