1. All of the plaintiffs' lawsuits against Defendant D Co., Ltd. are dismissed.

2. The plaintiffs' claim against the defendant C.

1. Basic facts

A. Plaintiff A Co., Ltd. (hereinafter “Plaintiff A”) is a company whose business purpose is housing construction business, real estate leasing business, etc., and Plaintiff B Co., Ltd. (hereinafter “Plaintiff B”) is a corporation established on July 6, 2016, which aims at solar power generation business, all new renewable energy-related business, housing construction business, etc.

B. F is established on February 6, 2001, in order to operate a H business for the purpose of operating a golf course business, housing business, riding track business, etc. (hereinafter “H business”) in the buildings listed in Articles 10 and 11 (11) of the [Attachment 2] and the above land and buildings (hereinafter “instant land”) in the building located in Yan-gun, Chungcheongnam-gun, Chungcheongnam-gun, Chungcheongnam-do, and the attached Tables 1,392,608 square meters, and the said land and buildings are collectively referred to as “instant land” and completed the registration of ownership transfer in the name of each of the above companies on the same day after purchasing the instant land and buildings under the name of the said I and KK Co., Ltd. (hereinafter “K”).

C. On November 28, 2001, F obtained a loan from L Co., Ltd. (hereinafter “L”) on November 28, 2001 to secure funds for the progress of the instant project, which was purchased in the name of I and K, and set up a collateral security right with the maximum debt amount of 4,550,000,000 won in the instant land and building, and the debtor N Co., Ltd., and the mortgagee and the mortgagee L Co., Ltd. (hereinafter “O”) on June 2, 2004, the F created a collateral security right with the maximum debt amount of 2,80,000,000,000 won in the instant land and the debtor I and the mortgagee.

The land in this case is divided on December 8, 2004 and maintained 271m2 in Taean-gun P.