In a city in Tokyo... it was hit by a zombie virus and turned all the city's residents into zombies

Maki and his remaining friends always kill the zombies but they keep increasing every day, it makes them all bored.. And finally all of them including Maki live their normal days like normal days even though there are lots of zombies

at that time, Maki woke up from her sleep in her house which was already covered in blood and zombie corpses scattered around, but Maki didn't care because she thought it was normal

Haa... Another boring day..