"In the vast space ocean, there exist many worlds. There are so many worlds in the universe that they can't be counted. Some worlds possess energies similar to ours, and they rank their cultivators in the same way, but many worlds have changed during their evolutionary years. Their energies are different from ours, and their methods of ranking experts differ as well."
"In these worlds, there are many types of energies, and in some of these worlds, life force is the energy used. The more you use, the weaker you get, but by absorbing the life force from killing others, you can increase your power. If you've visited these worlds, you can learn to transform these changing years into life force that may one day save your life."
