This is an interesting manga I have found. It tells the story of five high school students in Japan, along with their school nurse and a little girl they picked up along the way, as they try to find their families in the middle of a zombie outbreak.

The opening deals with three survivors, Takashi, Rei and Hisashi, running for cover on the roof of their school. Upon reaching the roof, the see most of the city they live in up in flames. Hisashi has been wounded, and only later do we learn it was a bite. Other survivors are Kohta, Saya, Saeko and Nurse Shizuka. Saeko is a kendo student, Shizuka has base medical training, Kohta is a firearms expert, and Saya is a genius. Primarily, the opening chapters show the initial panic that would undoubtedly take hold during a zombie outbreak. Takashi, being a bit of a delinquent, skips part of class and witnesses the first attack, where a "homless bum" attacks a group of teachers at the school's gate. Soon, due to panic, the entire school is infected, with only scattered pockets of survivors here and there. Eventually, Hisashi succumbs and is killed. Meanwhile, Kohta rigs an interesting weapon from a gas-powered nail gun. Soon, all of them meet in the teachers lounge, where a news report states that the world is being overrun, Washington D.C. is in flames, and that most of the Japanese police and Defense Force are woefully inadequite at dealin with the problem.

The second part deals with joining other survivors. The first group they meet are willing to work to escape, but a zombie fashion no-no is pointed out. One of the new survivors had a towel around his neck, which was almost instantly grabbed by the zombies. Soon, another one of the girls runs back for him, and also gets eaten. Finally, there is Shido-sensei, who is leading a group of students to a parking lot, where Takashi and the others planned on commandering a microbus. Shido's nature is first revealed when he leaves a student with a broken ankle to the horde. Rei quickly tries to tell Takashi that he should be left behind, but Takashi tries to be kind. After this, he tries to become leader of the whole group, brainwashing his students with fast talk and empty promises. Eventually, after a quick reference to a famous british zombie comedy, Rei hops off the bus, Takashi trying to talk sense into her. However, a bus comes barreling through, filled with infected. After hitting a wreck and exploding, Takashi and Rei decide to go a seperate way from the others through the city. This opens with a zombie wearing a motorcycle helmet trying to bite Takashi, and failing.

Part 3 has the first few glimpses of a city during an outbreak. The outskirts are almost barren, but further in, zombies start gathering in increasing numbers. Also shown is the first insane survivor. After stealing helmet zombies bike, they find two dead police officers and their gun. After, they get gas, and meet a man who is dressed "gangsta", trying to rape Rei. Eventuallly, Takashi has to shoot the man, who realizes the zombies have heard the comotion. Begging for their help, Takashi and Rei leave the man to die. Meanwhile, Saeko and the others on the bus are growing tired of Shido. They also decide to leave, though Shido claims he needs Shizuka. Almost instantly, Kohta fires a nail that clips the teacher, saying that Shido would stand by and laugh while Kohta was beaten up. Leaving the bus with Shido, the teacher puts his happy face back on and says, "Well, we're finally rid of that problem". Takashi and Rei finally get to a pair of bridges, but freeze when they see what is happening. The bridges are filled with infected, and the police, fire departments, and even construction workers are trying to keep them clear. Then, they meet up with the others, who also headed towards the bridge. Shizuka then remembers this was near her friends house, and leads the group to it.

The nature of the contagion that makes the zombies is never fully explained. Though one bite will transform a healthy male in under a half-hour, the exact cause is unknown. While protesters in one chapter shout that this is the result of weapons testing, the fact that the US president becomes infected makes this idea moot. The virus is not airborne either, making direct contact with a zombie the only known transfer method.