1. An appeal regarding the principal lawsuit and counterclaim by the Plaintiff (Counterclaim Defendant) and the principal lawsuit and counterclaim by the Defendant (Counterclaim Plaintiff).

1. The reasoning of the judgment of the court of first instance, which cited this case, is the same as the reasoning of the judgment of the court of first instance, except for the dismissal of a part of the judgment of the court of first instance, and thus, it is acceptable in accordance with the main sentence of Article 420

In addition, during the 3th 11th th 1th am of the judgment of the first instance, "at present pending appellate court" shall be "Seoul Western District Court 2017No1740, the plaintiff's appeal was dismissed and confirmed."

2. In conclusion, the plaintiff's claim of the principal lawsuit shall be accepted within the scope of the above recognition, and the remainder of the principal lawsuit shall be dismissed as without merit. The defendant's claim of the counterclaim shall be accepted within the scope of the above recognition, and the remainder of the counterclaim shall be dismissed as it is without merit. The judgment of the court of first instance is just in conclusion. Thus, the plaintiff's appeal as to the principal lawsuit and the counterclaim and appeal as to the principal lawsuit and the counterclaim of the defendant are all dismissed as it is without merit. It is so decided as per