Synopsis

A man dies and is reincarnated in an alternative universe in the middle of the 2000s. Although it's a different universe from his own, things are pretty much the same, with very few differences.
Using what he knew about some events, our protagonist uses his knowledge to become a billionaire. He was satisfied, as he had everything he wanted.
Until...
'Congratulations to you for owning the one and only SHOP, where you can buy food, weapons, ammo, and many other things to help you on your journey through the Apocalypse!'
An interface/message appeared in front of him, deeply confusing our protagonist. And the content of the message wasn't good either.
''Apocalypse !?!? What is happening!''
A few days later, news started to show some crazy people biting others.
''... That's bad, isn't it?''
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I do not own any of the characters.
I found the Image on the internet.