A. The Plaintiff related to the Plaintiff is a company engaged in the business of software development, game development, distribution, etc., and the Defendant (the former trade name was changed to B, but was changed to the current trade name on May 1, 2012; hereinafter referred to as “Defendant”) is a company engaged in the business of software development, production, production, distribution, maintenance, etc.

B. 1) On April 29, 2002, the Plaintiff concluded a memorandum of understanding between the Plaintiff and the Defendant, etc., the joint understanding of business development and services with the Defendant on April 29, 2002 (hereinafter “instant understanding”).

The key contents of this Understanding are as follows. The purpose of this Understanding is to cooperate with both parties in the development of and services to the game, and to respect the interests and business rights of both parties in accordance with future individual or separate written agreements in principle. Article 2 (Scope of Cooperation) 2.1 "A (referring to the plaintiff)" and "B (referring to the defendant)" are C Game (hereinafter referred to as "the game of this case").

) Joint development shall be in charge of planning and development, and 20% of the profits generated from paid services shall be allocated to “A” among the profits of “B”. 2.2 “B” shall delegate to “A” the entire rights of “A” and shall take all measures for the smooth development and services of these games. 2.3 “B” shall invest an initial amount of KRW 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000).