1. Revocation of a judgment of the first instance;

2. The plaintiff's claim is dismissed.

3. All costs of the lawsuit shall be borne by the Plaintiff.

1. The purport of the plaintiff's assertion is from March 2017 to June of the same year. The defendant merely paid KRW 3,920,000 out of the above construction cost of KRW 7,920,00,000, and it does not pay the remainder of KRW 4,9220,000. The defendant asserted that he is obligated to pay the plaintiff the remainder of the construction cost of KRW 4,922,00,00 and delay damages. The defendant paid 3,00,000 to the plaintiff during the period from June 4, 2017 to the 12 of the same month. The plaintiff's assertion that it is impossible to respond to the plaintiff's request. According to the purport of testimony and argument of the witness C at the trial, it is difficult to find that the plaintiff's request for construction work is "D" under the name of "E," the defendant is performing construction work, construction work, construction work as "E," and the defendant is not obliged to accept the plaintiff's request for construction work.