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?
I've been working to expose 
you from the very beginning!
!كنت أعمل على كشف أمرك من البداية
Und mein Plan war es von Anfang an,
dich auffliegen zu lassen!
¡Trabajaba para exponerte
desde el principio!
¡Trabajaba para exponerte
desde el principio!
Je n’ai eu de cesse de travailler
pour te dénoncer !
Io ho continuato ad accusarti per tutto questo tempo!
Eu estou trabalhando para
expor você desde o começo!
Я с самого начала трудилась,
чтобы обличить тебя!