MTL - Manga Guidebook - ~ Explain and ask once

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

“Boss…I’m really sleepy….” My eyelids were starting to feel heavy. After all, it was past 3am. Most normal people would be asleep by now.

In the world birthed by Pangu, the Three Sovereigns lit the spark of humanity that the Five Emperors would later fan into a blazing fire, eternally branding humanity as the leaders of the world….

This was a time where twilight had descended on the reign of the Human Sovereign and the Five Emperors had yet to emerge – humanity was merely one of the myriad races wandering about the vast cosmos.

This was a desolate and barren era. The monsters, devils, heavenly gods, and deities of all races stood aloft; with the demons, heavenly souls, and spirits dancing freely around the world.

The humans were still a feeble and burgeoning race, often taken as livestock and offered as sacrifices to the pantheon of races that ruled the world together from within the great wilderness.

This was not the era of the Foreworld, but the barbaric and untamed era of uncivilization!

Let us rewind back to China’s ancient and classical mythology and recount the legendary tale of how a single figure led humanity out of an epoch of darkness and into a new dawn.

Please sit back, relax and enjoy the (Rise of Humanity) !

A mortal youth accidentally stumbled upon the path of immortality and struggled to move forward on the arduous journey of seeking immortality.The road to immortality is more difficult than reaching the heavens, yet despite the countless obstacles, his determination to pursue immortality remained unwavering.Looking back, the green mountains still stood, but his old companions had all turned to bones.