A. On July 9, 2014, the Plaintiff (formerly, Co., Ltd.) and the Defendant concluded a service contract “B apartment remodeling project district unit planning alteration and establishment of traffic impact analysis and improvement plans” (hereinafter “instant service contract”) with the following content.

The name of service: Article 3 (Scope of Services) - Location: Seoul D Day (B apartment) area: approximately 25,810.23 square meters (including division of shares), the scope of services, the district unit planning zone and district unit planning change (including division of shares), the review of traffic feasibility and the environmental review, and the formulation of a traffic impact analysis and improvement plan: Article 5 (Service Price and Time) of the Act on the Formulation of Measures for Improvement of Traffic and Traffic Impact Analysis and Improvement after concluding a contract;

1. The amount of services shall be set at KRW 90,00,000 (14,000 won): The amount of services shall be set at KRW 90,000,000 for a day when the plan for the alteration of a district unit plan is formulated and the payment period shall be as follows: - Contract and retainers shall be as at the time of conclusion of a contract (15%) - Part payments shall be submitted at the time of submission of a district unit plan (20%) - Part payments at the time of submission of a district unit plan for a district subject to a district unit plan - Part payments at the time of determination by the Urban Planning Committee (20%) at the time of deliberation by the Urban Planning Committee for Traffic Impact Analysis and Traffic Improvement Measures (20%) - The remainder at the time of completion of the contract at the time of the division of 25% and the time of the conclusion of the contract at the time of the conclusion of the contract on July 29, 2014, at the time of the amendment of the first district unit plan for part payments on July 29, 13.

The Plaintiff completed the services by phase in accordance with the instant service contract as indicated below.

C. The plaintiff ①.