Virus outbreak.
The first patients were just overeating irrationally. Eat everything in front of you, beds, cloth, people... Everything you can see. The initial survival rate of patients is extremely low and they are very likely to die.
Then the situation got worse... The virus evolved, the survival rate of the infected gradually became higher, and they gradually became conscious. Human cities and life were destroyed bit by bit.
How do two girls who meet on the run survive in the apocalypse?
Finally... Is this the real apocalypse?
T is for yandere P is for tsundere