A. On July 12, 2011, the Defendant is a mutual aid business entity that entered into a mutual aid agreement with C, a licensed real estate agent conducting real estate brokerage business under the trade name of “B Licensed Real Estate Agent Office”, which stipulates that C, a licensed real estate agent conducting real estate brokerage business, shall be KRW 100 million, and the period of mutual aid shall be from July 27, 201 to July 26, 201, which stipulates that C, in the event that C, intentionally or negligently, causes damage to the property of the transaction party in performing

B. On June 9, 2012, the Plaintiff entered into a lease agreement (hereinafter “instant lease agreement”) with E to provide lease deposit of KRW 115,00,000, and from August 2, 2012 to August 1, 2014, among the multi-family houses with the fourth floor above the ground located D in Chungcheong City as a broker of C (hereinafter “the instant multi-family house”), and paid all the lease deposit.

C. At the time of the conclusion of the instant lease agreement, the establishment registration of a mortgage was completed with respect to the instant building and its site as the maximum debt amount of 585,00,000,000 won, and as the Japanese Credit Union as the mortgagee, several senior lessees, such as F and G, were residing therein.

Meanwhile, while mediating the instant lease agreement, C explained the maximum debt amount to the Plaintiff regarding the instant multi-family housing and the instant multi-family housing and the instant multi-family housing site, and written on the “B relationship relationship” column of the description verifying the object of intermediation attached to the instant lease agreement, but did not separately explain the details of the lease agreement of other tenants who had already resided in the instant multi-family housing and had presented the relevant evidentiary materials.

As a result, C, in the letter of confirmation of the object of brokerage attached to the instant lease agreement, provided that “the matters regarding the actual relation of rights or the matters regarding the rights that are not publicly announced” to the Plaintiff.