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

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

1. The Plaintiffs asserted as to the cause of the claim were introduced by K around March 2014, and the Defendants and the Defendants were obliged to pay the construction cost and damages for delay as stated in the claims, as well as the construction cost and damages for delay thereof, in accordance with each of the above construction contracts, as the removal works, joint site works, interior works, interior works, steel works, board works and glass works, electrical construction, air control works, air conditioners construction, water supply and drainage works, water supply and drainage works, remote area construction works, and other works.

2. The reasoning of the judgment is insufficient to acknowledge that each construction contract was concluded between the plaintiffs and the defendants, as alleged by the plaintiffs, and there is no other evidence to acknowledge this differently. Therefore, the plaintiffs' assertion without any need to further examine the remaining points is without merit.

3. In conclusion, the plaintiffs' claim against the defendants of this case is dismissed as it is without merit.