1. The plaintiffs' claims against the defendants are all dismissed.

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

1. Basic facts

A. The parties 1) Defendant F is the H Hospital located in Gwanak-gu in Seoul Special Metropolitan City (hereinafter “Defendant Hospital”).

Defendant E is a doctor to establish and operate the Defendant Hospital, and Defendant E is working for the Defendant Hospital, and is the deceased I (Js, hereinafter referred to as “the deceased”) as follows:

(2) The plaintiff A is a de facto spouse of the deceased, and the plaintiff B is a de facto spouse of the deceased, and the plaintiff A is a son who was a de facto spouse before his spouse was in a de facto marital relationship with the deceased, and the plaintiff C and D are siblingss of the deceased.

B. Around May 2014, the Deceased was hospitalized in the Defendant hospital and was hospitalized in the military. Around May 1, 2014, the medical personnel at the Defendant hospital diagnosed “the cardiopulmonary function disorder, the national wall function evaluation : the physical handicap function evaluation : the physical handicap and the heart damage” with respect to the Deceased on May 1, 2014, and prescribed drugs to the Deceased on or around July 2015, the deceased was hospitalized in the Defendant hospital again on or around July 6, 2015, and the medical personnel at the Defendant hospital was hospitalized in the military hospital. The medical personnel at the Defendant hospital was determined as the deceased on July 6, 2015, as the condition that “the cardiopulmonary function disorder, the physical handicap disorder, the physical handicap disorder, and the physical handicap function evaluation : the prescription function of the deceased,” and the prescription function of the deceased on July 6, 2015.

3) On January 2016, the Deceased was hospitalized in the Defendant Hospital and was hospitalized in the Defendant Hospital. At that time, the Deceased did not undergo an examination related to the heart or prescribed drugs. 4) On February 1, 2016, the Deceased complained of the dry marh, who was within the Defendant Hospital, was treated by the Defendant E, who was hospitalized in the Defendant Hospital. On March 5, 2016, the Deceased complained of the dry marh, and was treated by the Defendant E, who was admitted to the Defendant Hospital.

On May 23, 2016, the Deceased complained of the symptoms of nusea, and applied to the Defendant Hospital at the next Defendant Hospital, and Defendant E was experienced in drinking smoking practice instructors and in-fire extinguisherss.