怪異の王である吸血鬼・キスショットの力で人類がゾンビ化しているという事に気が付いた忍野忍。阿良々木暦はSOS信号替わりに花火を打ち上げるが、逆にゾンビに囲まれる事態に陥る。そこへ現れたのは、意外な人物で――。
Part 3 of 4. Koyomi and Shinobu get back August 21st together, however, they find that the human race is about to perish. They try thinking about why it had become this situation. The last newspaper's issue day they found is June 14th. Shinobu has something in her mind.
