1. The defendant's appeal is dismissed.

2. The costs of appeal shall be borne by the Defendant.

Purport of claim and appeal

1...

1. Occurrence of liability for damages;

(a) Each of the following facts shall be acknowledged either as a dispute between the parties or as a whole by taking into account the respective descriptions or images of Gap evidence 1 to 7, 12 to 14, Eul evidence 1 and 2 (including the number of branch offices; hereinafter the same shall apply), the witness H of the first instance trial and I's testimony.

1) Plaintiff A (hereinafter “Plaintiff A”)

) The F building of Bupyeong-gu Incheon Metropolitan Government (hereinafter referred to as the “instant building”).

(2) The Defendant is the owner of the instant officetel No. 306 and No. 405 of the upper floor (hereinafter “the instant officetel”), and the co-Defendant D of the first instance trial leased the instant officetel from the Defendant, and Co-Defendant C of the first instance trial tried to operate the headquarters in the instant officetel together with D.

3) The instant officetel from May 27, 2014 to around December 27, 2014, the air exhauster and ventilation pipe for the air or gas, and the construction of the instant officetel (hereinafter “instant construction”).

A) At around 17:00 on May 30, 2014, one of the construction business operators destroyed a string pipe pipe pipe of a string stream and became capable of water leakage in large quantities. As a result, an accident involving inundations and parts on the 306th floor below, and electronic equipment, etc. on the 307th floor below (hereinafter “instant accident”).

(4) At least since 2011, the instant officetel floor was cut off 75 meters in diameter on the instant officetel and left alone without being exposed to the ceiling of 306 meters. However, the volume of water flown out of the instant officetel pipes, as seen above, was flown to the following 306 and 307 via the drain pipes.

5 The building management rules of this case include the maintenance and repair of the water pipes, drain pipes, and heating pipes installed in the exclusive part under Article 18(3).