Struggling in the Last Days

[The protagonist is not the Virgin + cold-blooded + decisive in killing] A zombie virus breaks out, and only a few people survive. To kill is to commit a crime. Only a handful of humans have acquired the system and are constantly getting stronger, while zombies are also constantly evolving. Who can cum better! And can the protagonist survive by chance~~~~~ This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.