C595 Chuan of South Ice(part I)

In this world, there are two places known as cold zones near the Pole, one in the north, one in the south, both in the north and the other in the south. The cold of the Southern Ice Chuan is only below the Arctic River, but the latter cannot allow life to survive, not even the loudest animals in the world.

Even if they could survive in the ice river, they would still need to be protected