Youkou lives in a future where organ transplants are common and available to all, but life's not as idyllic as it seems--it turns out a nefarious organization is using that technology for their own evil ends! Only the elite squad Jackalope has any chance of stopping them before it's too late.

Under Shiba's leadership, the Jackalopes launch a surprise attack against the Amenotori Manufacturing Facility, where the Shikagura are undergoing maintenance. Every one of the Jackalopes' moves has been carefully informed by their intel network, but the Shikagura prove themselves to be even more wily than anyone anticipated! United by bonds stronger than blood, the Spiders have woven a web of crazed malice-and the Jackalopes have walked right into it!!

After the Shikagura's deadly attack, the Jackalopes are more driven than ever to flush out the Spiders. The horror of seeing normal humans transformed into monsters is made even more terrible when those people were once friends and loved ones. For Youkou, it is his sister. For Akuta, a friend. And for Midari, now held captive and being tortured by a young boy she once hoped to save, fate has perhaps the cruelest lesson of all...

Amenotori has pitted friend against friend and brother against sister, and its crimes have taken a toll on the Jackalopes, both mentally and physically. But the Shikagura were just a little white lie in the vast sea of Amenotori's sins. In the frigid north, the Jackalopes' regional base has requested backup to help confront a new enemy-one as extreme as the landscape!

Unable to join the fight against the Spiders, the children of the Dome have been hitting the books instead! Now Bold Bolt's smallest members have worked out a strategy for tackling their greatest enemy. Face-to-face with the Lord for the first time, the task has never seemed more impossible, but with the kids' plan in place, there is real hope for victory! But when truth dawns with the rising sun, Bold Bolt's familial bonds will be tested like never before...

Youkou and his friends confront Amenotori's president Utsuwa. In the midst of the battle for the survival of the world, Youkou gets two choices for the future. Who are the real demons, the humans or the Spiders? This steampunk horror-action story reaches its final volume!