a slightly special guy in the apocalypse

The first story doesn't expect much other than a very rational main character.
and the story of a relatively common guy living his life in an apocalypse with a very common system, more like he was the first to kill a zombie in hand-to-hand combat (knife) he has some things different from the others, go be explained later.
As English is not my native language, I am using the translator, so it may contain several translation errors.

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