The Battle World, as the name suggests, is always full of battles because cultivators can't hide in the city constantly.
They had to go out and fight for food.
The stronger ones could gather food for at least 100 Billion Years in one hunt, but the weaker ones could only gather food for 10 Million Years.
Every 10 Million Years they practically had to go out of the city.
It might seem like a long time, but for cultivators who were the strongest in their respective large universes, 10 Million Years was as short as the blink of an eye.
Bloodline cultivators with weak hearts experienced many frustrating sensations. It was like they were being pushed back into being little soldiers who had to fight every day. The sensation was even worse because they had been accustomed to a relaxed and calm life for a long time.
In this world, even peak experts could be killed, not to mention about them.