MGA: Chapter 151 - Mysterious Grey-Cloaked Person

Within the Lifeline, there were tunnels that went everywhere. However, the destination of all the tunnels gathered there. It was the core area of the Lifeline, and also where the Lifeline was located at.

At that place, corpses formed mountains. Blood formed rivers. The stench of blood spread to every single corner, but no matter how much more soul-shocking that scene was, it was not as terrifying as the object in the middle of the hall.

It was a oval rock. 10 meters long, 7 meters wide, 5 meters tall, and blood-red coloured. It had symbols all over it and it endlessly made puffing sounds. If one looked more closely, they could discover that it was throbbing.

How was that even a simple rock? It was just like a huge heart. A heart of a monster, as how...