1. The defendant's appeal is all dismissed.

2. The costs of appeal shall be borne by the Defendant.

3. The plaintiff L, M, N, andO

1. The reasons for the court's explanation concerning this case are as follows: "The owner is the owner of the third part of the judgment of the court of first instance" (However, the plaintiff L, M, N, andO succeeded to the ownership of the building of this case upon the death of December 13, 2016). The plaintiff of the third part of the judgment of the court of first instance added "the plaintiff of this case" to "the plaintiff of the same part of the judgment of the court of first instance" and "the plaintiff of this part of the judgment of this case" to "the plaintiff of the first part of the judgment of the court of first instance" and "the court of first instance" to "the court of fourth part of the judgment of the court of first instance" and "the third part of the judgment" to "the first part of the judgment of the court of first instance" are as stated in the reasons for the judgment of the court of first instance, and this shall be cited as it is in accordance with the main sentence of Article 420 of the Civil Procedure Act.

2. In conclusion, the decision of the first instance court is legitimate, and the defendant's appeal is dismissed as it is without merit. It is so decided as per Disposition.