Daegu Life Insurance Co., Ltd. (the name of which was changed to that of Hyundai Life Insurance Co., Ltd. on Apr. 8, 1993 and which was merged with Hyundai Life Insurance Co., Ltd. on Feb. 29, 200) extended a loan of KRW 300 million to Southyang Co., Ltd. on Nov. 24, 1992 under the network B and joint and several sureties Co., Ltd. on Mar. 21, 2005 with a loan of KRW 300 million on Mar. 21, 2005 to the Defendant who solely succeeded to the rights and obligations of the Plaintiff acquired on Mar. 8, 2013 (the principal amount of KRW 984,845,498, interest amount of KRW 703,591,601 as of Mar. 8, 2013), Articles 208(3)3 and 194 of the Civil Procedure