The first director that only existed in distant rumors was one that even Elder Hua Feng and the rest couldn't be compared to. Back then, that person created Ling Xiao Academy on his own and left behind many of his precious items, which were all kept and treasured in the academy's secret library.
Over the past thousands of years, only the directors and specific elders could enter.
Elder Hua Feng was coincidentally one of them. That was also the reason why he could personally witness the Xuan formation the first director had left behind. However, it was a pity that this Xuan formation contained too much strength, and it was too hard for Elder Hua Feng—who wasn't capable enough—to remember it thoroughly.
But even if he only recalled a portion of it, it would be extremely beneficial for him. Back at Flood-Desert Northern Region, he already felt that it was faintly familiar when he was trapped in the gigantic barrier, but he wasn't too sure.