Kotoko came up with three solutions, but they all got shot down. Kuro keeps trying to grasp the future where they can defeat Steel Lady Nanase, but Rikka made it disappear once again. But Kotoko wasn’t done yet. Steel Lady Nanase is not a ghost. What is Kotoko’s 4th solution that may finally put an end to Steel Lady Nanase’s existence once and for all?
Those boobs that reminded 
him of Steel Lady Nanase
ذلك الصدر الذي ذكّره بسيدة الفولاذ ناناسي
Dein Vorbau ließ ihn an
die stählerne Dame denken
Esos pechos le recordaron
a la Dama de Acero Nanase
Le recordaron a la Dama de Acero Nanase
y activaron su intuición de detective.
Les rouages de son esprit
se sont mis en branle.
È stato questo, che gli ricordava Karin Nanase,
a risvegliare il suo fiuto da detective.
Esses peitos lembraram ele
da Mulher de Aço Nanase.
Твоя грудь напомнила
 ему о Стальной деве —