Epidemic

It's the year 3020 and a infection disease broke out leading all of its victims in a state where they are mindless humanoids murdering other humans.

characters:
Callie, Marine, Miley, Ethan
(and other side characters

btw people can get infected in many ways
(Gunk from the ground usually in tree roots somehow comes from the ground and infects the living)

!Disclaimer!
There is blood gore and it can get sad but some of it is romantic, you have been warned.