

Thanks to the abrupt descent of an apocalypse, the entire world is instantly transformed into the zombies' playground. Morris Cruz, a dock worker, and two of his colleagues—Benjamin Mackie and Susie Powell—are stranded on Oceanic, a huge cargo ship that's laden with countless shipping containers thanks to the chaos. By sheer accident, they start an unprecedented ""blind box"" survival challenge.

As the Monster Age arrived and special abilities awakened, what awaited humanity was the end of the world. At the brink of the apocalypse, Frank Channing was sent back in time to the second year of the Monster Age. There, he awakened the Infinite Devouring System, allowing him to gain growth points by hunting the monsters. Along with it came a mysterious serpent-shaped mark on his arm. It could transform him into a powerful serpentine creature capable of wielding the very forces of the monster—seemingly tied to the secrets of the Blood Moon. From the system, Frank learned that he carried the mission of saving the world.