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

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

1. Basic facts

A. The Plaintiffs, as married couple, were constructing one unit of housing unit and one unit of display Dong on the land owned by the Plaintiff, and one unit of building on the land owned by the Plaintiff A (hereinafter “G”), but the construction was suspended before November 2010 due to the nonperformance of the Si construction.

B. On July 27, 2011, Plaintiff A entered into a contract with Defendant E to complete the said suspended G construction work by setting the construction cost of KRW 2.9 billion (including value-added tax; hereinafter the same shall apply) and the construction period from August 15, 201 to April 30, 2012.

Until March 31, 2013, the above contract was changed by three times, and the construction cost of KRW 3.762 billion was determined by September 30, 2013, and the construction period was determined by September 30, 2013.

(hereinafter referred to as "the First Agreement"). (c) In general,

Plaintiff

B On November 28, 2012, between Defendant E and Defendant E, concluded a contract for the new construction of Class I neighborhood living facilities, such as machinery rooms, septic tanks, etc. necessary for G use (hereinafter referred to as “mechanic”) (hereinafter referred to as “Class II contract”), with the terms of “each of the instant contract” and “each of the instant works based on each of the instant works,” including the first and second contracts, and “each of the instant works,” respectively, on the land located in the Suwon-si Suwon-si District H, its own ownership, from November 28, 2012 to March 31, 2013.

[Ground of recognition] Facts without dispute, Gap 1 through 6 evidence, Eul 43 evidence (including provisional number; hereinafter the same shall apply) and the purport of the whole pleadings

2. The judgment of this Court

A. The Plaintiffs’ claim for restitution of unjust enrichment against Defendant E or claim for damages: each of the instant contracts was cancelled or terminated due to the reasons attributable to the above Defendant, such as: Defendant E, the contractor, received excessively high price by deceiving the Plaintiffs; did not cooperate with the management agency for the entire construction work upon delegation from the Plaintiffs; and did not comply with the legitimate direction on construction work.

Therefore, the above defendant is against the plaintiff A.