1. The Plaintiff:

A. As for Defendant Il Construction Co., Ltd, KRW 1,337,760,281 and KRW 101,000,000 among them,

The plaintiff is an autonomous management body consisting of the occupants to manage the A Apartment B (hereinafter referred to as the "the apartment of this case") 12 and 656 households in Gunsan City.

Defendant Il Construction is a company that constructed the apartment of this case and a business entity that sold the apartment of this case.

The defendant Housing and Urban Guarantee Corporation (the name was changed from the Korea Housing and Urban Guarantee Corporation pursuant to Article 4 of the Addenda to the Housing and Urban Fund Act on July 1, 2015 to the Korea Housing and Urban Guarantee Corporation; hereinafter referred to as the "Defendant Guarantee Corporation") is a corporation established according to the purpose of conducting various guarantee business to promote housing welfare and to support urban regeneration revitalization, and the following B:

As stated in the subsection, Defendant Il Construction guaranteed the obligation to repair the defects in the apartment of this case.

The construction of Defendant Il-il had a guarantee creditor as the military market between the guaranteed construction and the Defendant Il-il Construction Co., Ltd. with respect to the instant apartment as indicated below (hereinafter “instant guarantee contract”).

Defendant Il Construction issued from the Defendant Guarantee Corporation an order of deposit of KRW 1675,930,732 on October 31, 2008 to October 2675,930,732 on October 31, 2009 to October 31, 2008 to October 31, 2010 to October 31, 2010 to 31,013,896,096,098 to October 31, 2008 to October 31, 2011 to October 4, 306,948,049 to October 31, 201 to October 31, 201; and deposited the same together with the Mayor on October 31, 201 to October 31, 2013 to October 5, 508 to 306, 308;

The apartment of this case was inspected on October 31, 2008, and thereafter, the guarantee creditor of the contract of this case constituted by the plaintiff, who is the autonomous management body of the apartment of this case, was changed to the plaintiff.

The section for common use and section for exclusive use of the apartment in this case due to the erroneous construction, non-construction, defective construction, and altered construction of Defendant Il-il Construction.