1. The plaintiff's appeal against the defendants and the second preliminary claim added in the trial are all dismissed.

2...

On June 7, 2006, Daejeon Mutual Savings Bank Co., Ltd. (hereinafter referred to as the "Seoul Mutual Savings Bank") loaned KRW 3,000,000 to C Co., Ltd. (hereinafter referred to as the "C") on June 7, 2006, including each of the instant loans and the conclusion of each of the joint and several guarantee contracts, and F entered into a guarantee agreement with the content of a joint and several guarantee agreement for the debt of the first loan within the limit of KRW 3,90,000,000 on the same day.

Daejeon Mutual Savings Bank extended a loan of KRW 2,590,000 to D Co., Ltd. (hereinafter “D”) on August 9, 2006 (hereinafter “debt of KRW 2,590,000,000.”), and F entered into a guarantee agreement with the effect that the debt of KRW 3,367,000,000 on the same day is jointly and severally guaranteed.

Daejeon Mutual Savings Bank loaned to E Co., Ltd. (hereinafter “E”) KRW 4,650,00,000 (hereinafter “third loan obligation”) on May 31, 2007. The F entered into a guarantee agreement with the effect that the third loan obligation within the limit of KRW 6,045,00,000 on the same day.

Daejeon Mutual Savings Bank extended a loan of KRW 700,000,000 (hereinafter referred to as "loans of Type 4") to persons who are natural companies on December 14, 2007, and the F entered into a guarantee agreement that guarantees the joint and several obligations of KRW 910,00,000 on the same day.

The repayment period of the first loan was extended on June 7, 2007, around December 5, 2006, around May 31, 2007, around December 7, 2007, around December 7, 2007, around April 7, 2007, and around December 7, 2007, the repayment period of the second loan was extended on June 9, 2007, around December 5, 2006, around May 31, 2007, and around December 9, 2007, around December 7, 2007, and around December 27, 2007, respectively.

E merged C around October 18, 201, and D around January 27, 2012, respectively.

Daejeon Mutual Savings Bank was declared bankrupt on February 2, 2012 by Daejeon District Court 2012Hahap1, and the plaintiff was appointed as a trustee in bankruptcy on the same day.

proceedings in relation thereto.