---- Taizan Fukun no Matsuri.
By connecting to a higher spiritual entity known as Taizan Fukun and borrowing its power, one could manipulate souls through the highest-grade secret ritual. It was both the untransmitted secret of Tsuchimikado, the main family of Onmyōdō, and the ultimate art and taboo of the Imperial-style Onmyo Arts.
To seal the Original, the Fourth True Ancestor, borrowing the power of this secret ritual was something he had no choice but to do.
That was because only through this ritual could Luo Zhen draw his soul directly out of Nagisa's body, guide the Original's power into his own body, and finally seal it.
Thus, Luo Zhen had prepared for the Taizan Fukun no Matsuri long in advance.
----Here, the sun and moon shine together----
Luo Zhen took out a prayer document covered in invocations. The magical power within him surged and transformed into turbulent curse power that poured out of his body.
----I, Tsuchimikado Akimi, in the name of the current heir of the Tsuchimikado Family, inherit the secret art----
Although no one yet knew whether the main family of Onmyōdō even existed in this world, much less whether an Onmyoji family called the Tsuchimikado Family existed, and although Luo Zhen was not called Tsuchimikado in this world, the Taizan Fukun no Matsuri was originally the Tsuchimikado Family's untransmitted secret. Announcing it to the gods under this name made it the best medium.
Naturally, merely having the name Tsuchimikado was not enough to successfully activate the Taizan Fukun no Matsuri, the highest-grade secret ritual.
To use the Taizan Fukun no Matsuri, one needed a ritual altar on the scale of the Tsuchimikado Family's Heavenly Altar.
However, Luo Zhen had used the Golden Crow and Jade Rabbit to make up for every element required by the altar.