Nine palace kill array is one of the top ten kill arrays in Guiguzi's array collection. It requires very strict conditions to arrange. Even the blue alum didn't collect all those things. So all the time, most of his use of arrays is to study deeply some arrays that can be added to weapons. Such arrays can be used as weapons by himself and then engraved. Although they are harmful to spirits, they are powerful. Of course, in addition to this, he studies the ways to crack various arrays. Of course, if he knows the ways to crack, he will know how to arrange them. So he is also a...