1. All of the plaintiffs' claims are dismissed.

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

1. Basic facts

A. From July 2014, the Plaintiffs entered into a sales contract with the Defendant with respect to each subparagraph of the I Commercial Facilities 221 unit (hereinafter “each of the instant commercial buildings”) located outside H of the Seocho-gu, Seocho-gu, Seoul Special Metropolitan City, and succeeded to the status of purchaser of the sales contract.

Plaintiff

(Buyer) On July 8, 2014, B (201: 201 - 95,539,000 square meters on July 16, 2014; (i) 1,174,503,000 square meters on July 16, 2014; (ii) 305 square meters on July 5, 2015; (iii) 205 square meters on July 16, 2015; (iv) 305 square meters on July 16, 2015; (v) 205 square meters on July 3, 2018; (v) 305 square meters on July 16, 2015; (v) 1,389,82,000 square meters on July 3, 201; (v) 205 square meters on July 3, 2014; (v) 305 square meters on July 14, 20197

B. Plaintiff A paid 694,941,000 won out of its sales price of KRW 1,389,882,00 by July 2015, and the remaining Plaintiffs paid all their sales price to Defendant until February 2016.

C. There are one or six columns inside each of the instant commercial buildings completed around October 2015, and the total area of the area occupied by the columns in the area for exclusive use in each of the rooms, and the area that cannot be used or difficult to be used due to the existence of columns is 201 and 8.42 square meters, 202 square meters, 202 square meters, 203 square meters, 203 square meters, 29.89 square meters, 301 square meters, 301 square meters, 31.6 square meters, 318 square meters, 318 square meters, 11.6 square meters, 321 square meters, 3322 square meters, and 9.91 square meters.

[Ground of recognition] Unsatisfy facts, Gap 1, 5, 7, and 8 evidence and images (including paper numbers), the result of on-site verification conducted by this court, the result of survey and appraisal conducted by appraiser N, the purport of the whole pleadings

2. The plaintiffs' assertion

A. In the instant commercial building 203, Plaintiff A’s primary claim for cancellation or cancellation due to Plaintiff A’s violation of the duty of disclosure, six columns exist in a form that substantially limits the use of space, and thereby, Plaintiff A cannot achieve the original purpose of the sales contract.