During a game event in Akihabara, a zombie panic breaks out! Six months later, Japan is devastated and abandoned by the world. In the midst of this, there are a few geeks who survive in Akihabara. Kouhei, a video game geek, Take, an idol geek, and Sugita, a military geek, live in a multi-tenant building full of treasures and enjoy their lives surrounded by their favorite things. One day, however, they witness an idol running away, and when they go to save her, they find themselves in an unexpected survival situation...