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

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

1. Basic facts

A. Around December 6, 1965, H drafted a sales contract (No. 2) with the content that the Defendant’s Doz set up the Defendant’s Doz and H sell the amount of 1,600 square meters and the amount of 1,160 square meters to J (K in Ansan-si, Ansan-si) of the father-gun-gun (K) and the amount of 1,160 square meters to 86,40 won.

1. The above principal promises to conduct a boundary surveying of the bank boundary line of M to submit a letter of commitment.

② Also, I confirm that the total area of M maintenance, N salt farms, O miscellaneous land, P ditch land, and Q maintenance, which the person himself/herself conducts a divided survey, is 5,027 square meters (1,520 square meters and 6 square meters, 6 square meters).

B. Around June 26, 1979, the Defendant drafted each of the following descriptions (No. 4; hereinafter “each of the instant notes”) to the GH.

C. In around 1979, the Defendant conducted a divisional survey on each real estate listed in the separate sheet prior to the correction of the area, and there was a partial survey on the land annexed to R in Ansan-si K (as at the time, referring to 'J' and hereinafter referred to as 'J' at the time) of Ansan-si.

- The main number shall be divided into 1,554 square meters in the ND, Seosan-si, the ground for the lot classification size of 1,554 square meters in the unit area, and -S shall be divided into the main number of 326 square meters in the unit area of the Dong-gu, Ansan-si, 2 Ansan-si, the main number of which is 326 square meters in the unit area of the 3 Ansan-si, the unit of which is divided into 1,256 square meters in the unit area of the unit of

D. According to the result of the above subdivision survey, each real estate listed in the separate sheet before the area was corrected on August 24, 1979 (hereinafter “instant land”) was registered on the land cadastre as follows.

E. According to the division as above, the registration of subdivision on July 4, 1980 and the registration of transfer of ownership on December 15, 1974 in the name of the defendant for the land Nos. 1 through 4 of this case was completed.

After changing the area prior to the change of the lot number number, 1,54 square meters in N1,54 square meters in Dong-gu, Ansan-si, 1,956 square meters in the area prior to the change of the lot number, O326 square meters in Dong-gu, 2,232 square meters in Dong-gu, P 1,062 square meters in the area of 1,06 square meters in the area and 2,232 square meters in the area of Dong-gu, Ansan-si

(f)in this regard;