Royal Bastard's Bloodstained Regression - Chapter 15: The Demon Returns Home

A young man plagued by recurring nightmares finds himself visiting a blind fortune teller, who sends him to a world of martial arts that looks a lot like the wuxia stories he used to read.

In the sky of this world, a tome shines every now and then, revealing the hierarchy of mighty beings that seek power amid troubled times. Determined to unravel the mysteries of his involuntary journey and the secrets of the world he has ended up in, he endeavors to ascend the tome’s rankings, all while looking for a path back home.

Official Chinese blurb

Wandering the jianghu with a blade and wine, where beauties’ grace is filling one’s mind.

A youth, saber on his back and wine gourd at the waist, strides forth, yet the jianghu of his heart seems only more elusive;

With each flipped page of the Tome of Troubled Times, decades of nights soaked in rain pass over the jianghu.

As he suddenly turns to look back, he finds that the mortal world has shattered in his wake.

In this life, I will live for you.

In this world, there exist Confucians, Daoists, Buddhists, Demons, and Arcanists.Xu Qi’an, a police academy graduate, suddenly finds himself waking up in a prison, set to be exiled to the frontier three days later…His initial goal was to protect himself in this world with no human rights and to be able to live a leisurely life as a rich man.…Many years later, Xu Qi’an looks back on the past, with long-dead enemies and friends, as well as the numerous bones he has left behind.As the Yangtze River flows eastward, the waves wash away the heroes; right and wrong, success or failure will all turn into nothing but history.However, just like the sun’s rays gleaming over the towering mountains, after each sunset, a new sun will rise.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.