User blog comment:Godisme/A Piggy Party/@comment-1368674-20121219064243/@comment-5171333-20121220023439

Shutara probably made the Shutara scale mentioned in chapter 480. A scale that seemingly indicates the danger level of the balance between the souls of the living world and Soul Society. As she is possibly a security scientist, maybe she created the Wall that defends both the royal realm and soul society.