Assuming Kousei-ō truly participated in the Lady Taki-Yasha Rebellion, and that today, a thousand years later, Kousei-ō still exists in some form.
Then the power of Kifune Myojin's "curse" might very well be manifested within him as well.
After all, to maintain existence for a millennium, merely keeping oneself breathing wouldn't suffice—there must be some connection to the power of Demon Gods.
"If this is the case, the resurrection of Taira no Masakado's bones—which is essentially Kifune Myojin's curse—might have long been controlled by Kousei-ō. Worse yet, it's also been mentioned that Taira no Masakado had been resurrected during the Lady Taki-Yasha Rebellion. If that attempt followed the method of 'flesh-spirit bones,' then haven't those three key elements already been mastered once by Kousei-ō and his associates? Doesn't the Countermeasures Office's archives have more detailed records regarding this?"
Kamiyagawa pressed further.