1. The Plaintiff (Counterclaim Defendant) paid KRW 146,353,488 to the Defendant (Counterclaim Plaintiff) and its related amount from July 30, 2015 to April 4, 2017.

1. Basic facts

A. The Plaintiff as a party (former trade name: New L&C Co., Ltd.) is an executory agent, and the Defendant is an architect who operates a comprehensive design, supervision, etc.

B. On August 13, 2010, the Plaintiff entered into a design service contract with the Defendant for an urban development project in the kingsan-si, kingsan-do (hereinafter “instant project”). The main content of the contract is as follows.

Design use: Contract price at the time of completion of approval for use from the contract date: The scope of service of KRW 4,640,405,00 (excluding value-added tax) (Article 5) shall be as follows:

(1) The affairs of authorization and permission, such as planning, the preparation of the basic plan and the detailed design drawings and specifications, (2) the preparation of the books of authorization and permission, such as construction deliberation and approval of a project plan, etc. (3) the affairs of rental within the scope of the defendant's service and the affairs of a designer's medical engineer within the scope of service (4) the affairs of data research and technical review and other related affairs. (6) The affairs of preparing the detailed statement of execution of construction expenses (including the basic interior design, excluding the model house design) the affairs of individual UN IT design. (7) The affairs of preparing the detailed statement of execution of construction expenses. (8) The affairs of minor design change, such as the change of the area of sale (exclusive area, common area, etc.) that occurs in the course of completion of the construction permission after completion of the construction permission. (1) The matters other than the above affairs, which the plaintiff requests the defendant and the defendant agreed with, shall comply with the “design Service Guidelines” attached to the design.