In 20X5, for some reason, more than 95% of the people in a certain Japanese prefecture turned into zombies! But I mutated into an Uma Musume.
With an Uma Musume's physical abilities and speed far beyond those of humans, I should have had an easy time surviving the apocalypse. But I turned into Oguri Cap, one of the Uma Musume.
Oguri Cap has a bottomless appetite, so I'm constantly hungry. In an apocalyptic world, food and water are the most precious resources. And after turning into Oguri Cap, my stomach became a bottomless pit that could never be filled.
But after every full meal, I can improve my abilities and even learn skills.
As I flee and struggle to survive, I meet other people who have turned into Uma Musume...