1. The Defendant’s KRW 300,000,000 as well as the Plaintiff’s annual interest from January 1, 201 to April 12, 201, and the following.

1. Basic facts

A. 1) The Plaintiff, a construction business entity, entered into a construction contract from September 2007 to April 2009, added up each new construction project described in the following table to the Defendant, a building business entity: (a) each new construction project described below (hereinafter the above new construction project; and (b) each of the instant construction projects.

The Plaintiff and the Defendant did not specify the amount of the construction cost at the time of concluding each of the above construction contracts. However, when transferring only the construction work of the building of the building of the building of the five largest scale, the Plaintiff and the Defendant appears to have written a construction contract (Evidence B-2) stating the construction cost of the building cost of KRW 625 million in order to use it for tax data when transferring the construction work of the building of the building of the five largest scale. From September 4, 2007, the Defendant started construction work of the building of the third floor of the building of the building of the building of the building of the 3rd floor of the building of the building of the building of the 3rd floor of the building of the 5th floor of the building of the 5th floor of the 5th floor of the 1207, around April 2007, each of the above construction work was completed on or around February 8, 2010.

B. (1) From August 2010, the Plaintiff: (a) filed a claim against the Defendant for the repayment of the construction cost of each of the instant construction works from around KRW 1.1 billion; and (b) claimed that the Defendant received approximately KRW 2.2 billion in total from the Plaintiff as the construction cost; and (c) demanded the return of the excess construction cost paid. (d) Accordingly, the Defendant agreed on September 6, 2010 between the Plaintiff and the Plaintiff on December 31, 2010 to return the KRW 300 million out of the construction cost that the Defendant received from the Plaintiff to the Plaintiff by December 31, 2010; and (e) written a loan certificate (Evidence A; hereinafter “the loan certificate of this case”).

I undertake to return the amount to December 31, 2010 by claiming an excessive amount of KRW 300 million in the course of the construction work.

3. After September 13, 2010, the defendant is owned by the defendant as security for the right to return the construction price of KRW 300,000,000 as stated in the above loan certificate to the plaintiff.