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 Plaintiffs are licensed real estate agents who purchased the second floor No. 1 (hereinafter referred to as “instant building No. 1”) from Defendant C and D (hereinafter referred to as “instant sales contract”) of the H building No. 2 (hereinafter referred to as “instant building”) located in Seongbuk-gu, Seongbuk-si, Seongbuk-si, Sung-si, and completed the registration of ownership transfer on October 15, 2014, and Defendant E and F are licensed real estate agents who arranged the instant sales contract.

B. At the time of approval for use on November 15, 1995, the current status of the second floor is as follows. The current status of the second floor at the time of approval for use, and the registration for preservation of ownership of the commercial building of this case was made on December 1, 1995 in the status of approval for use by J without classification of subparagraphs 1 and 2 at the time of approval for use.

Since then, the stairs connected to the first floor K of the instant building (hereinafter “instant building”) were installed in the instant building, and the collective building register on the instant building was converted on February 27, 1996, and was classified into Jho-ho (hereinafter “instant building”) and the instant I commercial building, such as the current status.

As above, there was no entrance leading to the second floor corridor at the time of distinction as above, and as above, the second floor floor floor plan at the time of conversion into the aggregate building ledger is as follows.

(The second floor of the commercial building of this case was classified into the J, I, and L at the time, and thereafter, Lho Lake was subdivided into the present L, M, N, andO at the time).

C. At the time, both sections for exclusive use of the second floor of the instant commercial building were owned by P, Q, R, and S as 1/4 shares, respectively (it appears that the G-ro G-gu, Sungnam-si, which was used as the site of the instant commercial building at the time, was P, Q, R, and S, and that the entire portion of the instant commercial building was the same owner at the time of approval for the use of the said commercial building, and each of the said sections for exclusive use appears to have been the same owner).