Doomsday: I Was Turned into a Dog by the System?

Meteorite from outer space falls on the earth, an unknown virus breaks out, and the global apocalypse comes ~ For a time, humans turned into ferocious zombies, those human pets turned into alien beasts, and countless human civilizations were turned into ruins~ The otaku accidentally obtained the system, thinking that he could look at everything in the apocalypse and sing all the way. Unexpectedly, the first thing to do when binding the system is to turn him into a golden retriever? Golden Retriever: System, can I untie the knot? I can be a human being~ System: Okay, complete the 666 missions first~ Golden Retriever: I am not a human, but you are real*~ So, a golden retriever with human thinking took his upgrade system and embarked on an apocalyptic journey with the goal of becoming a human~ This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.