1. The Defendants jointly and severally against the Plaintiff KRW 22,381,295 and against the Defendant B, from June 3, 2016.

1. Determination as to the cause of claim

A. Comprehensively taking account of the overall purport of statements and arguments as stated in Gap's evidence Nos. 1 through 11 and Eul's evidence Nos. 1 and 2, the plaintiff entered into a sales contract (hereinafter "the instant contract") with the non-party company (hereinafter "non-party company") on February 13, 2015 with the non-party company (hereinafter "non-party company") for Dtel Nos. 1337 newly constructed on the land other than Seo-gu, Seo-gu, Seo-gu, and the defendant Eul is a licensed real estate agent who arranged the instant contract and the defendant Korean Licensed Real Estate Agent Association (hereinafter "the defendant association") is a licensed real estate agent who arranged the instant contract, and the defendant's Korean Licensed Real Estate Agent Association (hereinafter "the defendant association") has a mutual aid contract with the non-party company (hereinafter "mutual aid contract") to compensate for property damage caused to the parties to the instant contract by intention or negligence, and the non-party company is not obligated to manage the ownership transfer of the instant officetel's trust property and trust property.