1. All appeals by the Defendants are dismissed.

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

Purport of claim and appeal

1.

1. Determination on the legitimacy of a subsequent appeal

A. According to the records, the Plaintiff filed the instant lawsuit against the Defendants on March 2, 2017, and the court of first instance sent a certified copy of the decision of performance recommendation and the guide of lawsuit to the Defendants “Yecheon-si D and 2 (E restaurant).” On March 4, 2017, the Defendants were served with the certified copy of the said decision of performance recommendation and the guide of lawsuit. ② around April 3, 2017, the Defendants submitted the “application for objection to the decision of performance recommendation” to the court of first instance; ② around April 3, 2017, the Defendants sent the notice of performance recommendation to the court of first instance at the address of the Defendants on May 15, 2017, but was not served three times as closed, and the Defendants did not serve the said notice to the court of first instance at the address of 10, 2017, and the Defendants did not serve the said certified copy at the address of 20,000,717.

B. (1) According to Article 173(1) of the Civil Procedure Act, in a case where a party was unable to comply with the peremptory period due to a cause not attributable to him/her, he/she may subsequently complete the procedural acts within two weeks from the date on which such cause ceases to exist. The term "reasons for which the party cannot be held liable" as provided in the above Article cannot be observed even though the party had paid general attention to conduct the procedural acts even though he/she had paid due attention to it.