A. The Plaintiff is an executor who newly constructed and sold a Busan Southern-gu Ctel.

B. On May 7, 2015 and July 17, 2015, the Plaintiff entered into a supply contract with D, among Ctels, with the content of 1301, 1318, 1322, 1404, 1505, 1204, 1219, 12219, and 1221 to E on October 5, 2015 (hereinafter “each of the instant officetels”), and the parts related to the instant case are as follows.

The seller "A", the buyer and the buyer shall be "B", and the office trust Korea shall be "A" and "A" shall be "A".

Article 1 (Supply Price and Payment Method) (1) B shall pay the following amount to A:

Provided, That in accordance with the business agreement between A and a financial institution, the intermediate payments may be loaned to B according to the credit assessment of the financial institution, and in this case, the intermediate payments (one-six times) shall be loaned within the limit of 55% of the supplied amount by the deadline, and after the expiration date of the occupancy, the terms and conditions of the loan with the

Article 2 (Cancellation of Contract) (1) A may cancel this contract when B has committed any of the following acts:

2. When the balance has not been paid within two months from the expiration date of occupancy, and a grace period of at least 14 days has not been set and notified two times or more but has not been paid.

(5) Where this contract is terminated or terminated, loans from financial institutions under Article 13 exist, Eul shall repay the principal and interest of loan to the lending institution, and Gap shall pay the principal and interest of loan (including the interest borne by Gap under Article 13), penalty for negligence and penalty under Article 3 from the amount of supply to be returned to Eul.