City No. 20, Mental Dojo.
A young man sat cross-legged on the wooden floor of the dojo, with twelve death warriors clad in black kendo attire seated silently and ominously before him.
The young man spoke, "The Family Head is the navigator of the Qieshe Yumian legacy, and we are his most trusted. Now someone has struck at the dojo's doorstep, slaughtered hundreds of our Mental Dojo members, and left unscathed. We cannot allow this to happen again."
Qieshe Yumian dispatches death warriors; this is acknowledged across the Federation. They have a complete indoctrination process that makes young people more radical and loyal after training here.
Therefore, in the Outer World's Mysterious Business Department of the Island Country, power has always been held by Jindai Yunxiu, who practices Qieshe Yumian, rather than the strongest Jindai Yunlo.
Of course, this is also related to the drastically decreasing number of shikigami within the Onmyoji legacy.