It is set at a high school where students suddenly become zombies.

The series ended in the final print issue of Comic Ryū in May 2018.

The manga is licensed in the United States by Seven Seas Entertainment.

Written and illustrated by Tsukasa Saimura, Hour of the Zombie was serialized in Tokuma Shoten's Monthly Comic Ryū manga magazine from January 18, 2014, to May 19, 2018.

[5] Reviewing the first volume, Rebecca Silverman of Anime News Network felt that the manga distinguished itself from other zombie stories with Saimura's depiction of the zombies as still having humanity, as well as the protagonist Akira's reaction to them.