Immortality Begins with the Yellow Emperor Breaking Through the First Qi Refining Stage

[Immortality + Multiple Cultivation Systems + Witnessing History + Slow Burn]

A rough synopsis:

This is simply the story of a transmigrator chosen by the Heavenly Dao to become the failsafe guardian of a plane.

He witnesses the Yellow Emperor break through from Qi Refining to Foundation Establishment, Yu the Great tame the floods and establish hereditary rule, the Black Bird of Destiny, the gods of Egypt, and the Buddha, Son of the Plane's Destiny. He witnesses the glory of Rome, the arrival of Jehovah, the contention of the Hundred Schools of Thought, and Huo Qubing, Zhao Da, Li Shimin, Genghis Khan, Zhu Yuanzhang...

He witnesses the outbreak of World War II, as the three great powers each step into the thirteenth stage, that of Great Luo Golden Immortal!

In the end, the protagonist becomes a sage and shatters it all with one punch!