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?
That just means Nanase 
Karin made her up, right?
هذا يعني أنّ ناناسي كارين اختلقتها، صحيح؟
Das hieße doch, dass sich
Nanase Karin die ausgedacht hat.
Significa que Karin Nanase
la inventó, ¿no?
Pues que Karin Nanase
se la inventó, ¿no?
C’est Karin Nanase
qui a dû l’inventer.
Beh, l'avrà inventata Karin Nanase!
Quer dizer que Karin Nanase
inventou ela, não é?
Ну так сама Карин её и выдумала!