1. The plaintiffs' claims against the defendants are all dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. Plaintiff A is a licensed real estate agent with the trade name of “E Licensed Real Estate Agent”, and Plaintiff B is a licensed real estate agent who operates each office of licensed real estate agents under the trade name of “F Licensed Real Estate Agent”.

Defendant C is the owner of 13/27 shares of the Gangnam-gu Seoul Metropolitan Building (hereinafter “instant building”) and Defendant D Co., Ltd. (hereinafter “Defendant Co., Ltd.”) concluded a lease agreement on the instant building with Defendant C on September 8, 2017.

B. On September 8, 2017, Defendant C entered into a lease agreement (hereinafter “instant lease agreement”) with the Defendant Company as a broker of a licensed real estate agent J operating an office of licensed real estate agents (hereinafter “I real estate”) with the name of “I Licensed Real Estate Agent”) under which the lease contract was concluded between the Defendant Company and KRW 300,000,000,000 per annum and KRW 23,000,000 per annum for the entire building (hereinafter “instant lease agreement”).

[Ground of recognition] Facts without dispute, entry of evidence Nos. 4 and 5, purport of the whole pleadings

2. The plaintiffs' assertion and judgment

A. (1) On July 19, 2017, Plaintiff A concluded a brokerage contract with Defendant C on the whole building of this case with Defendant C, and Plaintiff B concluded a brokerage contract on August 18, 2017 with K director of the Defendant Company on the lease of a building for private use.

Since then, Plaintiff A introduced the lessee to Defendant C and arranged for the installation of advertising materials on the lease of the building of this case. Plaintiff B introduced the leased building to K, and Plaintiff B introduced four of the buildings to be leased, and performed brokerage activities, such as conducting on-site answers with K.

(2) On August 28, 2017, Plaintiff A’s brokerage assistant confirmed the instant building with L and K, which is the brokerage assistant of Defendant B, and the Plaintiffs agreed with the Defendants regarding each of the lease deposit and rent, and as a result, the Plaintiffs agreed with the Defendants and agreed on KRW 300 million in lease deposit and KRW 25 million in rental fee, and left with only the conclusion of the lease contract.