Enmugakure was founded by a man known as Ginmaru who believed in Kirigakure's principles of the way of killing and by the sword and desired to make a new village to replace it that would continue to follow those principles and surpass the old. He built this new village at the center of a massive lake that connects to all 4 other villages through massive rivers and since it was so close to the ocean it would get hit by ocean fog constantly hence its name Enmugakure the village hidden within the fog. Once Enmugakure was established Ginmaru decided to form a new Seven swordsman of the mist and since the old swords were destroyed he ordered new ones to be made in their place. Once complete he established the new Seven swordsman and turned them into a special task force that would directly serve the current Aoikage.