A. On October 25, 2013, the Plaintiff, who is engaged in artificial fishery under the trade name of “C,” concluded a contract with the Defendant on the sports center 8 and 9 floors in Daejeon E-sports Center D (hereinafter “instant sports center”) as follows:

(2) On October 31, 2013, the payment of the remainder of KRW 20,000 in the intermediate payment of KRW 15,00,000 on the date of the contract for down payment of down payment of KRW 5,000 (excluding value-added tax) and the payment of KRW 15,00,000 on November 20, 2013, the basic construction work details, which is the payment of KRW 15,00,000,00,00, shall be installed with an eight-story elevator space of the 8th floor of the string cell floor (construction with the floor prepared) in a 8th floor of the construction of the 8th floor of the 8th floor of the wind-line electrical construction work (construction with the 9th floor of the 8th floor of the 8th floor of the wind-line show room in front of the 8th front floor of the 8th floor of the 8th screen room in front of the 8th floor.

B. On October 28, 2013, the Plaintiff entered into the instant basic construction contract with the Defendant, along with the instant basic construction contract, as follows:

(2) “The additional construction contract of this case” refers to “the instant basic construction contract” and, in the case of referring to the instant basic construction contract, hereinafter “the instant construction contract”). The additional construction work payment of KRW 3,821,00 (excluding value added tax) on November 20, 2013, 160,000, male 160,000 on the floor of the man’s away room construction work of KRW 1,200,000, 700,000 after the shower removal (excluding glass price) after the shower removal, 50,000,000 male and female shower, such as purchase, etc. of KRW 50,611,000,000, in general, etc. of KRW 477,600,000, 000, 000, 000.

C. On October 25, 2013, the day of the contract, the Plaintiff’s payment of KRW 15,000,000, and thereafter.