Early summer, 1923. Major Yoshinobu Maeda arrive in Tokyo to question an actress who revived as a vampire after being crushed by a falling prop. Will he be able to communicate with the confused woman, who only recites lines from her last performance?

Maeda meets the vampires under his command for the first time, including an old classmate. Their first mission: Hunting down a vampire couple who have been attacking humans in Tokyo.

Yamagami and Kurusu reflect on their new vampiric lives as it sinks in that they are now legally dead. Meanwhile, the army brass pressure Maeda and Nakajima for results, aiming to cut funding for Code Zero.

Kurusu still struggles to use his vampire powers in combat as Code Zero investigates a series of strange deaths in the Yoshiwara red-light district.