1. The defendants are jointly and severally liable to the plaintiff for 532,905,277 won and the year from August 20, 2013 to September 6, 2017.

1. Comprehensively taking account of the purport of Gap evidence No. 1 and all pleadings as to the cause of the claim, the plaintiff lent KRW 1,00,000 to defendant B on May 14, 2008, interest rate of KRW 8% per annum and due date of repayment on December 31, 2008. On the same day, the defendant A Co. Ltd. guaranteed the defendant B's obligation to the plaintiff. On the other hand, the plaintiff is the person who received dividends from the auction court on August 19, 2013 by exercising the right to collateral security established on the land and buildings owned by the defendant B as a security for the above borrowed money and receiving KRW 467,094,723 out of the principal amount.

Therefore, the Defendants are jointly and severally liable to pay to the Plaintiff the remainder of KRW 532,905,277 (i.e., KRW 1,00,000,00 - KRW 467,094,723) and damages for delay calculated at the rate of KRW 8% per annum, which is the agreement rate until September 6, 2017, as the Plaintiff seeks from August 20, 2013, the day following the dividend day of the above auction court, as the Plaintiff seeks, from August 20, 2013 to the date on which the duplicate of the complaint in this case was finally served to the Defendants, and the damages for delay calculated at the rate of KRW 15% per annum as prescribed by the Act on Special Cases concerning the Promotion, etc.

2. In conclusion, the plaintiff's claim against the defendants is justified, and all of them are accepted. It is so decided as per Disposition.