General Liang thought that by delivering commands in five directions at once, they wouldn't be able to figure it out!
Nonetheless, General Liang has underestimated them, particularly Xiao'er. Although, General Liang knew Shangguan Xuanyi was formidable, and dare not belittle him. He does not know Xiao'er, who is disguised as a man!
He doesn't see how they both have the capability of never forgetting anything they see!
He doesn't clue that Xiao'er can just look once and fixate the image in his mind, he could even rely on his memory to draw the whole image, it's like taking a picture!
With her excellent memory, logical and reasoning ability, she can deduce the enemy's intentions based on the scene and her omnipotent memory.
Even if the killing formation is powerful and ever-changing, there's a saying that goes 'the more things change, the more they stay the same'!