The Iron Hammer Vengeful Spirit standing before them wasn't Ruyue Nao's real form. Beichuan Si sensed it when he had moved earlier.
Although the intensity of the vengeful spirit's resentment was considerable, it merely meant a few more strikes from Beichuan Si would be needed.
However, Ruyue Nao, who was conducting the "Impure Ritual", couldn't possibly be this fragile.
Therefore, Beichuan Si could only reach one conclusion:
"Ruyue Nao must have hidden her true form somewhere in this school building, because the spiritual realm was the place she was most obsessed with before her death... In this building, there might be clues hidden about where exactly Ruyue Nao is hiding. And... we're not going to open the spiritual space for now, it seems Ruyue Nao has strong control over this spiritual realm."
Yes, this time the situation was different.
