1. The Plaintiff:

A. Defendant B’s KRW 18,629,00 and for this, KRW 5% per annum from August 13, 2015 to March 24, 2016.

1. Basic facts

A. The Plaintiff is a merchant who runs food materials distribution business with the trade name “G” in the F commercial building located in Yeongdeungpo-gu Seoul Metropolitan Government E.

B. (1) On September 6, 2014, the Plaintiff received a written estimate as shown in attached Table 1 with respect to the interior interior interior interior interior interior interior interior interior interior works from Defendant B, who runs the interior management company, as “H,” and the contract is concluded between September 17, 2014 and September 30, 2014 (hereinafter “instant first construction contract”).

(B) The Defendant B paid 6,00,000 won of down payment to Defendant B. However, the Defendant B discontinued the floor pipe construction, electric wires construction, etc. and suspended and locked construction.

C. Concluding the instant secondary construction contract: (a) the Plaintiff received a written estimate as shown in attached Form 2 as to the G interior interior interior interior interior interior interior interior interior tesen, which was interrupted by Defendant D, operating the tegrative company, “I” on September 26, 2014; and (b) the contract agreement stipulated from September 26, 2014 to October 3, 2014, stating that “the name of additional quotation and the construction works, which have not been discussed, are added separately to the instant secondary construction contract” (hereinafter referred to as “instant secondary construction contract”).

The Plaintiff concluded a contract deposit of KRW 4,50,000, and thereafter, the Plaintiff paid KRW 3,000,000 on October 7, 2014, and additionally paid KRW 1,200,00 on October 11, 2014. 2) Meanwhile, the Plaintiff instructed the J, K, etc., a business operator, who was expected to take part in Defendant D or D to take part in the instant secondary construction works, including the instant secondary construction works, the cleaning of outer walls, and the cosing and waterproofing construction works, and the installation of electric works, and the additional construction was completed around October 20, 2014.

[Reasons for Recognition] The facts without dispute, Gap's evidence 1 to 3, 5 through 7, Eul's evidence 4, 5, 9, and 10, witness J and K's testimony and the purport of the whole pleadings

2. The allegations by the parties and the judgment.