1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. The network D (hereinafter “the deceased”) concluded two insurance contracts between the Defendant and the deceased (hereinafter “each of the instant insurance contracts”) as follows: (a) the insured was named as the “instant insurance contracts according to the sequence below; and (b) the insured was specified as the “instant insurance contracts.”

The amount of insurance coverage covered by the beneficiary of the death insurance contract of the No. 1 E insurance type 1 E insurance from November 26, 2012 to November 26, 2054 by the statutory heir from November 26, 2012 to November 26, 2054, 70,000 won in general injury death, 2F insurance from March 9, 2016 by the legal heir from March 9, 2016 to March 9, 205, general injury death KRW 300,000,000 in general.

B. At the time of entering into each of the instant insurance contracts, the Deceased signed a written offer stating the deceased’s occupation as “business management office worker,” and the column for stating “business management” among the questions regarding “the obligation to notify prior to the contract” contained in the said written offer is indicated as “business management.”

C. On May 1, 2014, the Deceased joined G Co., Ltd. and worked as the factory site of plastic recycling plant in Scheon-si H (hereinafter “instant factory”).

On October 13, 2016, the Deceased was caused by an accident (hereinafter “instant accident”) in which two waste vinyl scrap scrapers were transported by making them in the foregoing plant, due to the weight of screen scam, lost its center, and cover the Deceased on the left-hand side. On the same day, the Deceased died due to the brain scambane.

After the occurrence of the instant accident, the Plaintiffs, as their offsprings, filed a claim for insurance proceeds under each of the instant insurance contracts with the Defendant on November 16, 2016. On December 21, 2016, the Defendant terminated the instant first insurance contract on the ground that the Plaintiff, among the Plaintiffs, designated as the representative beneficiaries, violated the deceased’s duty to notify regarding the first insurance contract, and reduced insurance proceeds in proportion to the supply of injury.