When the Evil Cultivators charged, they could not sense the presence of any formations in their surroundings. This was a "Formation Black Hole" specifically designed by Song Nianchu to counter these very individuals. To be precise, these Evil Cultivators could indeed sense the existence of a formation, but it appeared to be of the same type as the one they had encountered in the Secret Realm. Song Nianchu had added many modifications on top of the original foundation, leading the Evil Cultivators to believe that even if they sensed the formation, it was merely one of their own. Consequently, they rushed forward the moment they laid eyes on her.
The formation covered a vast area. Seeing them charge, Song Nianchu put on a look of panic and began to flee.
Si Jiuli: "..."
Chapter 148