1. The Defendant’s KRW 1,203,530,90 for the Plaintiff and the following: 5% per annum from March 30, 2017 to July 13, 2018.

1. Basic facts

A. The defendant joining the defendant (the "Co., Ltd." on March 29, 2005) newly constructed and sold E apartment units on the 1st, 5th and 326 units of underground apartment units on the 15th and 326 units of the 15th apartment units (hereinafter "the apartment units of this case") and the defendant (the "Co., Ltd.") entered into a contract with the intervenor for the new construction of the apartment units of this case, and the defendant (the "Co., Ltd.") is a guarantee business operator who entered into a housing trust contract and a housing sale guarantee contract with the intervenor as to the apartment units of this case and the site thereof.

B. (1) On June 2004, the Plaintiff entered into a construction contract with the Intervenor to newly construct and sell the instant apartment complex. The Intervenor performs the business of securing and selling the ownership of the instant apartment site, etc., and the Plaintiff entered into the construction contract (hereinafter “instant contract”).

2) The business that carries out the construction of the apartment of this case and the repair of its defects, etc. (hereinafter “instant business”).

(2) Around October 2004, the Plaintiff entered into the instant contract on the instant apartment construction project with the Intervenor (hereinafter “instant construction”). From December 2004, the Plaintiff acquired the project site from the Intervenor and commenced the instant construction project.

C. 1) An intervenor, around November 2004, is a trust contract with the Defendant for the instant apartment and its site, etc. (hereinafter “instant trust contract”) around November 2004.

The instant trust agreement concerns the instant case, as follows. Article 1 (Trust Real Estate Trust) was either constructed or constructed on the two parcels outside D and eight parcels and the land.