1. All of the plaintiffs' claims are dismissed.

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

1. Basic facts

A. The Defendant is a corporation established on March 2, 2015 for the purpose of the new construction of real estate, the sale of real estate, the sale of real estate by sale by proxy, etc., and is an executor who sells D stores in the Southern City (hereinafter “instant building”).

B. On June 30, 2016, Plaintiff C and the Defendant: (a) concluded a contract with the Defendant to sell real estate listed in paragraph (1) of the attached Table 1; (b) KRW 322,452,00; and (c) KRW 352,450,00 as indicated in paragraph (2) of the attached Table 2; (b) Plaintiff C paid KRW 48,367,80 on the date of the contract; (c) KRW 48,367,80 on August 16, 2016; and (d) KRW 64,490,40, KRW 26,00 on the intermediate payment; and (d) KRW 205,00 on the remainder payment; and (e) KRW 360,50 on the date of the contract; and (e) KRW 206,67,500 on the intermediate payment; and (e) KRW 265,760,767,2075,275,2867,267,267,7,207,7,207,25,267,7,27,20000.

C. On July 12, 2016, Plaintiff A and the Defendant entered into a contract between Plaintiff A and the Defendant to purchase each real estate listed in Articles 3 and 4 of the separate sheet from the Defendant in total amount of KRW 322,452,00.2) Accordingly, Plaintiff A paid the Defendant the total amount of KRW 322,452,00 of the sale price, and on October 28, 2016, each of the real estate listed in the separate sheet Nos. 3 and 4 in the separate sheet is registered under Plaintiff A, the debtor, and the mortgagee.