C2739 Ancient Battlefield(2)

"What are those?"

Following this sudden phenomenon, a dense cloud and fog suddenly appeared from the endless horizon in the distance, surging toward the crowd.

"Is it a dark cloud? Why do I feel a terrifying killing intent..."

"It's getting closer and closer. What a terrifying killing intent. Just what is that..."

"Oh my god, those... Those are not dark clouds! It's... biology! It's..