1. The Defendant: (a) KRW 180,122,129 for the Plaintiff and KRW 6% per annum from January 9, 2018 to July 11, 2018; and (b) the Plaintiff.

1. Basic facts

A. On July 5, 2016, the Plaintiff and C purchased buildings listed in the separate sheet (hereinafter “instant building”) from the Defendant for KRW 3.5 billion, and completed the registration of ownership transfer as to each of the instant buildings on August 3, 2016.

After that, on November 8, 2016, the Plaintiff completed the registration of transfer of ownership on November 7, 2016 with respect to shares of 1/2 of the instant building from C on November 8, 2016.

B. On December 19, 2016, the Plaintiff leased the instant building to D and E with a deposit of KRW 150,000,000, monthly rent of KRW 25,000,000, and the lease period of KRW 19,200 from December 19, 2016 to December 19, 2018, and D and E operated a telecom in the instant building from December 19, 2016.

[Ground of recognition] Facts without dispute, Gap evidence 1, 2, 26 evidence, Eul evidence 10, the purport of the whole pleadings

2. The parties' assertion

A. The Plaintiff’s assertion 1) The damages equivalent to the cost of defect repair exist in the building of this case as indicated below, and the costs necessary to repair each of the defects are as indicated below. The Defendant, as the seller of the building of this case, failed to perform the repair work for the defect above. The Defendant is obligated to pay the Plaintiff the sum of 260,636,786 won for the defect repair due to the seller’s warranty liability under Articles 580(1) and 575(1) of the Civil Act or due to the buyer’s non-performance of the obligation to pay the Plaintiff the sum of 260,636,786 won for the defect repair (including the value added tax), 245,14,025 won, 70, 715, 974 won and 215, 305, 308, 475, 3785, 375, 475, 785, 57, 57, 7845.