After all, the Soldier Technique was ultimately centered on the user's own body. The various soldiers were merely auxiliary measures.
But the Yin Yang Art of Japan seemed different.
These Demon Spirits all had an incredibly ancient feel to them. Their level of independence was comparable to that of true living beings, which was simply inconceivable.
Yi Beidou's observation was, in fact, correct.
The Yin Yang Masters of Japan cultivated the arts of "Nourishing Spirit" and "Spirit Control." Shikigami were their very foundation. The progenitors of Yin Yang Masters had hoped to create Spirit Bodies that could be passed down through generations, allowing their strength and power to endure indefinitely.
The Twelve Divine Forms within the Heaven-Reaching Lodge were born from this very principle. After generations of Sacrificial Refining by the Tsuchimikado Clan, their power had long since reached a terrifying level.
