On April 1st, a video broadcast from overseas showed "zombies"—the dead rising and attacking people.

Most people didn't believe it, ridiculing it as an April Fool's joke.

However, there were quite a few who believed it, and he, living in Japan, was one of them.

An inconspicuous high school student in a Japanese classroom, he had been making various preparations since that day, anticipating the day it would eventually arrive.

And finally, it came—what people hadn't believed, what they hadn't wanted to believe.

From that day, he began to distinguish himself, striking out on his own with his companions.

To survive in this post-apocalyptic world.

A story about high school boys and girls striving to survive in a world struck by a zombie pandemic.

The central characters, including the protagonist, are not ordinary.

The story features altered names of real-world cities.

Additionally, while knowledge about firearms, crime prevention, the Self-Defense Forces, and the government appears, this information is gathered and presented by the protagonist from the internet, so it may differ from reality.

The zombies follow an archetypal pattern, characterized by being "slow-moving," "continuing to move unless their heads are destroyed," "turning into zombies if bitten," and "strong."

They do not run, die from hunger, or exhibit intelligent behavior.

They also do not transform.