Logging 10,000 Years into the Future

One day in the Martial World, cracks appeared in the heaven and earth, and terrifying foreign beasts invaded the world.
100 years later, martial arts began, human martial artists and foreign beasts began to compete.
200 years later, humanity began to decline, habitable space is constantly under attack by the foreign beasts.
300 years later, Lu Sheng crossed over. He was able to log 10,000 years in to the future in his dreams —
“Basic Body Refining Technique 10,000 years later has been reworked more than 10,000 times, and is thousands of times more effective than it is at present!”
“Martial Breathing Technique 10,000 years later …”
“Body Refining Tonic 10,000 years later …”
“The Holy Codex of Martial Arts 10,000 years later …”
“10,000 years later humanity goes extinct!”
“The Martial Civilization has reached the apex, but no one’s left to inherit it anymore.”
“I, Lu Sheng, am the only spark left!”