Earth's Immortal Cultivation Story

Due to the extensive use of nuclear weapons in the world war, the earth suddenly entered an ice age with extremely low temperatures. Fortunately, more than a hundred years later, the earth returned to normal, but the animals on the earth have mutated, and the spiritual energy on the earth has also recovered, and humans have begun the path of cultivating immortals! Five hundred years later! The protagonist Ye Xiao comes from the earth but is a person from the 21st century, not the earth five hundred years later. Let's see how it brings the knowledge of the 21st century to save the earth in the age of post-dharma cultivation... PS: Single female protagonist, there is a system! ! !