Sadoru Chiba: 11 books

The infection continues to spread, and Kurumi is humanity's only hope to repel it! The Randall Corporation is the girls'next destination, and it's their best chance to find the equipment they need to make a serum that will combat the virus. But once they get there, things go from bad to worse in the blink of an eye, and their priorities will have to change...

Meet the members of the School Living Club! There's the shovel-loving(?) Kurumi Ebisuzawa, the big-sister figure Yuuri Wakasa, club advisor Megumi Sakura, and last but not least, the ever-optimistic Yuki Takeya. The School Living Club is just your average after-school organization where the girls hang out, have fun...and live at school as the sole survivors of a zombie apocalypse. NBD.

The School Living Club is going on its first field trip! Yay! (That is, with Megu-nee's permission, of course...) What will they do on their excursion? The usual stuff: shopping, sightseeing...maybe rescuing another survivor from a horde of ravenous zombies. NBD.

The girls arrive safely back home after their excursion, and the School Living Club ends up with a new (provisional) member--Miki Naoki! And what's the best way to celebrate the newest addition, Yuki-senpai? Why, a sports festival, of course! But not everything can be fun and games in a post-apocalyptic, zombie world...can it?

Down in the emergency shelter of the school, what could have been a dream reunion becomes a gruesome nightmare...With Kurumi injured and her condition worsening, the newest member of the School Living Club makes a choice...?!

Yuki, Kurumi, Yuuri, and Miki of the School Living Club are planning a school festival when suddenly...they receive a message from a survivor?! But that glimmer of hope is just the beginning of an unheard-of danger looming over Megurigaoka Academy ...

The girls head out on a graduation trip together! There's a mysterious voice on the radio--does that mean someone else is still alive!? In high spirits, the School Living Club sets out to see if they'll be adding a new member.

Now that they've graduated high school, the girls are heading off to college! With Ruu-chan in tow, they arrive at their new school: St. Isidore University! What awaits them there, however, remains to be seen...

With Ruu-chan as their new companion, the rest of the School Living Club are at St. Isidore University. As Yuki's and the rest search for the Randall Corporation, the Militants decide that the moderate members of the Circle are the source of the continuing crisis and begin their assault. Meanwhile, Kurumi's symptoms grow worse. What will become of her...?

The virus's infection rate has intensified, and even those who appear to have had no physical contact with the infected are developing symptoms! Meanwhile, now in the Militants' custody, the girls have a chance to escape...but Touko wants to stay?! With tensions running high, she tries to explain, but is anyone willing to listen?

After negotiations break down at the Randall Corporation headquarters, the girls find themselves on the run, and Kurumi's condition is only getting worse! Suddenly, a new organization offers assistance...but can it be trusted?