1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

1. Basic facts

A. The Plaintiff is a company that leases construction materials, etc., and the Defendant is a company that carries on construction business, and C is a person who carries on construction business in the trade name of D.

B. On April 9, 2016, the Plaintiff entered into a contract for building material lease (hereinafter “contract as of April 9, 2016”) with fixed-term E (hereinafter “instant construction project”) with fixed-term construction materials, such as steel materials, required at the construction site during fixed-scale E (hereinafter “instant construction project”) from April 9, 2016 to June 8, 2016; and total amount of KRW 28,980,000 (additional rent of KRW 25,480,000) with fixed-term rent of KRW 25,50,000 (hereinafter “the contract as of April 9, 2016”), and the Defendant jointly and severally guaranteed the obligation to pay rent to the Plaintiff during the construction site from October 18, 2016 to 10, 2016 to 3,500,000,000 won; and the Plaintiff is at the construction site of this case from October 16, 2016.

(2) On April 18, 2016 through November 30, 2016, the Plaintiff entered into a contract for the lease of construction materials with F as KRW 6,00,00 (hereinafter “2 contract of April 18, 2016”) during the period from April 18, 2016 to November 30, 2016 between F and F. Meanwhile, the Plaintiff entered into a contract for the lease of construction materials with F as KRW 6,00,00 (hereinafter “2 contract”). Meanwhile, between C and C on July 25, 2016, the Plaintiff determined safety launch plates, pipes, and clean lamps from July 25, 2016 to August 24, 2016 to KRW 1,476,00 (a contract for the lease of construction materials with KRW 10,000,000,000 as KRW 1,006,00,000 (hereinafter “the lease”).

The F entered into a contract, and the F jointly and severally guaranteed the obligation to pay the rent (as of April 9, 2016, April 18, 2016, and July 25, 2016).