1. The Defendant (Counterclaim Plaintiff) paid KRW 262,988,000 to the Plaintiff (Counterclaim Defendant) and its related amount from November 22, 2018 to April 23, 2020.

1. Basic facts

A. The Plaintiff is a company that runs the business of producing advertisements, vicariously advertising, etc., and the Defendant is an executor of the business that newly constructs and sells officetels on the ground of Busan Dong-gu C (hereinafter “instant officetels”).

B. On April 27, 2018, the Defendant entered into an advertising agency contract with the Plaintiff (hereinafter “instant advertising agency contract”) that delegates the advertising affairs for the sale of officetels in this case to the Plaintiff. Around that time, the Defendant paid the Plaintiff the down payment of KRW 199,00,000 (excluding value-added tax). The main content of the instant advertising agency contract is as follows.

In addition, the estimate attached to the instant advertising agency contract shall include the detailed items of the production of materials, broadcasting, newspaper, PR, vehicle advertising, banner, online and mobile, Mat, leaflet, printed matters, products, planning) and the detailed items as follows: the detailed items of the production of materials for the broadcast shall be the radio, regional cable advertising, regional cable advertising, newspapers, the detailed items of newspapers shall be D, E, sale announcement, the detailed items of the PR, the newspaper articles, ice flaps, boog, bus advertising, LED image, vehicles, placards, etc., the detailed items of the advertising agency advertisement, the detailed items of the advertisement, the box box, the box box, the advertising advertising, the flaps, the sign board board, the advertisement of real estate, the flaps, the flag banner banner, the flag advertising, the human banner, the human banner, the human advertising link (flad, the link link), the flag-fluor's name tag, the detailed items of the advertising box, the flabol, the flaps's.