The Reincarnated Assassin is a Genius Swordsman - Chapter 650

With the revival of spiritual energy and the breakdown of the order of species, it is a difficult test whether human beings can still stand at the top of the biological chain.

(There is already an old book, The Strongest Descends in the City, you can read it.)

- Description from novelbuddy

Pick up a free master,

Cultivate ultimate teachings,

Steal a fox to be your pet,

Seduce a demon to be your husband.

Traveling through time and space is not scary, the only thing to fear is a lack of culture.

They all say that the road of cultivation is long; the best road to walk is the road that is most suitable for yourself.

That’s just a lie!

We travelled through time and space, we will walk other people’s path so that they have no path to walk.

There’s nothing to worry about if you can’t get tried.

We can pass some else’s trial and become our own deity.

He is the ruler of the mercenary realm, an overlord that gives headaches to the leaders of any country! For the sake of his friends, he’s willing to sacrifice himself; for the sake of his family, he does not hesitate to spill blood! He is a dragon, one that soars above even the highest of heavens. He’s a power that advances triumphantly through unstable situations, stirring up both the winds and the waters.

- Description from Novelupdates

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again.