A. On August 14, 2002, the Defendant obtained approval of the business plan under Article 33 of the former Housing Construction Promotion Act (amended by Act No. 6732 of Aug. 26, 2002) and Article 32 of the Enforcement Decree of the same Act (amended by Presidential Decree No. 17816 of Dec. 26, 2002), and decided to construct two H apartment units (hereinafter “H apartment”) with 210 households, a public constructor, on the ground of 7,373 square meters of the site area of land outside Gapopo-si and Gapo-si, with the funding of the National Housing Fund under Article 32 of the former Housing Construction Promotion Act and the Enforcement Decree of the same Act (amended by Presidential Decree No. 17816 of Dec. 26, 2002

B. After that, the defendant entered into a lease contract with the winner upon receiving an application for occupancy according to the above public announcement of invitation. Among them, the contract details with the plaintiffs are as listed below.

(hereinafter referred to as “rental housing” as indicated in the table below. On the other hand, lease deposit for each of the instant rental housing has increased annually. The lease deposit for each of the instant rental housing is as listed in the table “Deposit” column in the annexed Table 1.

(hereinafter referred to as "each of the lease deposits in this case") Serial contractor No. 1 AH apartment 201, 905, January 2, 2004, 202 H apartment 202, 607, April 3, 2007, No. 202, 608, Jun. 4, 2008, DH apartment 202, 1107, August 5, 2005, EH apartment 202, 1201, March 14, 2003

On September 2004, the Defendant completed H apartment on September 14, 2004, and completed the registration of preservation of ownership on the whole of the above apartment on September 14, 2004, and provided the whole apartment as joint collateral against the National Housing Fund, thereby providing the whole apartment as a joint collateral against the National Housing Fund (hereinafter “National Bank”) and completed the registration of creation of a neighboring mortgage worth KRW 6.55 billion in the future of the maximum debt amount.

The above joint collateral was rescinded on May 28, 2008, and thus, the maximum debt amount is KRW 31,200,000 for each divided building of H apartment.