Return of the S-Rank Hunter

With the System's arrival 100 years ago, Earth was transformed into a deadly progression realm. Countless wars were waged, millions of lives were lost, and chaos descended. By the time Kain was born, humanity had lost. The monsters had triumphed. All Kain ever knew was the colony and his role as a hunter within it. Its histories, its goals, its sustenance. This was all that mattered. Until one day, on a mission far beyond the colony walls, searching for other humans, Kain died. But death, it seems, was not the end. Reborn at the exact moment of the Integration 100 years prior, before all the war and destruction, Kain is given a second chance. With a previously believed-to-be-extinct Dao and a mysterious title, he needs to figure out the secrets of the future. With the return of an S-Rank Hunter, maybe humanity will have a chance this time.