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

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

1. Basic facts

A. On January 9, 2015, the Plaintiff and Defendant C’s father F, on behalf of the Plaintiff, as the broker of Defendant D, on behalf of the Plaintiff who is the married couple, is a real estate agent, and on January 9, 2015, the Plaintiffs were 121 square meters and 44.92 square meters and 6 square meters and 6 square meters in a single-story warehouse (hereinafter “each of the instant real estate”).

(1) A sales contract shall be purchased at KRW 125,00,000, and the down payment of KRW 50,000,000 shall be paid at KRW 75,000 on the date of the contract, and the remainder amount of KRW 75,00,000 on January 23, 2015, and Defendant C shall enter into a sales contract under which a special agreement for completing the registration of ownership transfer with F on the share of 1/10 of each of the instant real property (hereinafter “instant sales contract”).

(2) On January 23, 2015, Defendant C received the down payment of KRW 50,000,000 from F on the day of the above sales contract, and entered into a lease agreement with F on January 23, 2015 to lease the instant building at KRW 25,00,000 (hereinafter “instant lease agreement”) and received KRW 50,000,000, excluding the said deposit, and at the same time, Defendant C completed the registration of ownership transfer for shares of KRW 4/10, with respect to shares of KRW 5/10, with respect to shares of the Plaintiff among each of the instant real estate, and for shares of KRW 1/10, with F.

3) Meanwhile, Defendant C was subject to cash settlement at the time of the instant sales contract, because Defendant C did not apply for parcelling-out within the period of application for parcelling-out as to each of the instant real estate included in Pyeongtaek-si H Housing redevelopment improvement zone. B. Defendant D and Defendant E Co., Ltd (hereinafter “Defendant Company”).

On September 12, 2014, the Defendant Company entered into a guarantee insurance contract for real estate brokers' business bonds with the amount of insurance coverage of KRW 100,000,000, and the period of insurance from September 17, 2014 to September 16, 2015. The said insurance contract proves the amount of damages suffered by the client when the brokerage accident prescribed by relevant statutes occurs.