Shackles of Humanity

In a mysterious and bizarre world, amidst a human civilization stripped of electricity,and within a brutal, chaotic era where human lives are as cheap as grass—Luo Kai struggled desperately to survive as a lowly prisoner. Pain and agony tempered his will; the flames of war and endless slaughter forged his growth. When he finally looked back, he realized he had already become one of the most powerful lifeforms in this entire world. — Description from novelcodex.org