Since there is no dispute between the parties as to the facts of the cause of the claim, Defendant C, D, and B are the principal debtor of each guarantee insurance contract. Defendant C, D, and B are jointly and severally and severally liable to pay the Plaintiff the insurance proceeds of 103,989,230 won (30,000,000 won 39,166,956 won) and damages for delay up to December 31, 2015, including 50,564 won until December 31, 2015, 154,553,394 won and the principal amount of 103,989,230 won, among them, from January 1, 2016 to February 23, 2017 to February 16, 2017, with the annual interest rate of 15% as stipulated in the above agreement, from the following day to the date of full payment of the claim and damages for delay by 103,989,230 won.

If so, the plaintiff's claim is reasonable.