C588 Seven Killing Array Mystic Realm

The Seven Killing Array is one of the three great secret realms that Devil Slaughter Sect has given disciples a chance to train in.

The three major secret realms of the Devil Slaughter Sect are the Devil Slaughter Formation, the Destruction Formation, and the Seven Killing Array.

The Seven Killing Array was the weakest of the three.

But even though it was the hardest secret realm