C209 There is a deficiency in the Heavenly Dao

"A perfect formation doesn't exist?" Ning Fan was stunned: "What do you mean?"

Ji Xuandou then sighed, "Actually, as long as a cultivator who has studied the art of array formations systematically knows that the perfect array formation is only a distant legend."

And when Ning Fan nodded, "Please advise me, City Lord Ji."

Actually