Atsushi Nakajima vs. Teruko Ōkura

Atsushi Nakajima vs. Teruko Ōkura is a battle fought between the Armed Detective Agency Atsushi Nakajima and Hunting Dogs Teruko Ōkura.

It happened during the Agency's mission to locate Aya Koda and the vampire Bram Stoker.

Prologue
Atsushi rushes to the airport to locate Aya and Bram per Ranpo's information and order. While at the airpot, Atsushi sees a crying girl from afar and approaches. The girl continues to mumble something about finding her precious person. As Atsushi approaches the crying girl, the girl reveals a grin describing that her precious person is Atsushi, as she grabs Atsushi by the neck and reveals herself to be a member of the Hunting Dogs.

Battle
Teruko continues to choke Atsushi but unfortunately his tiger strength is not enough to free himself from Teruko's grasp. Atsushi reaches to his pocket to get his phone but Teruko immediately slams Atsushi to the ground. Teruko gets hold of the phone telling that Atushi tries to contact his allies. However, Atsushi denies it. As Teruko holds the phone, she sees a recording of Tachihara telling his status. Teruko is shocked by what she sees and Atsushi reveals that he is looking for Teruko to show her the footage. As Teruko listens to Tachihara saying the Agency is innocent, Teruko glances at Atsushi claiming the footage is fake but Atsushi didn't refute it and just tells her that she can believe so if she wants.

After the footage ends, Atsushi reveals that Tachihara stopped communicating with them after it. Teruko asks Atsushi the Agency's plan. However, Atsushi tells her otherwise that they need to help the Agency in order for them to tell their plan. Teruko proposes a condition to Atsushi to take him to the Agency's strategist before she decides if she'll help them or not. After much thought, Atsushi agrees to the condition to take Teruko to Ranpo.

Atsushi contacts Ranpo regarding the meet-up location and updates Teruko about the said information. Before on their way to the meet-up, Atsushi asks Teruko is she will be cooperating on trying to convince the other Hunting Dogs not to attack him while piggybacking her. Teruko gives her assurance and tells that Jōno is missing. This made Atsushi confused as Jōno being taken away should be considered as a criminal act by the Agency, as per Ranpo's deductions. Teruko tells Atsushi that it was a deduction mistake however, Atsushi defends Ranpo's deductions claiming that they never go wrong.

Teruko sighs as she tells Atsushi that she's usually the one responsible for making people confess. Suddenly, the confused Atsushi is striked by Teruko using her Kōben Sanketsuka. Teruko then restrains Atsushi as she tries to use her ability on him. As Teruko restrains Atsushi to the ground, she contacts Tetchō informing him that she will now begin the torture in order to make the enemy spit out their lies and orders Tetchō to stop the other Agency members from interfering.