Is This the Battle for the C Position?.

Summary

In a world where the internet suddenly becomes inaccessible, a group of nine, led by a pre-natal martial artist, encounters a zombie in an internet café restroom. Despite the initial shock, they realize the zombie is weak and easily subdued. The group, concerned about the drastic changes in the world outside, decides to investigate further. However, their search for information proves fruitless as they find all machines unable to connect to the internet. With growing unease and strange roars echoing around them, they contemplate their next move, uncertain of what has transpired in their absence.

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