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?
She made sure to get rid of her 
own fingerprints around the room,
،حرصت على التخلص من بصماتها في الغرفة
Ihre eigenen Fingerabdrücke
hatte sie sorgfältig entfernt,
Se aseguró de librarse
de sus propias huellas
Se aseguró de librarse
de sus propias huellas
Elle avait préalablement
effacé les siennes
Aveva già cancellato le proprie impronte dalla camera,
Fez questão que ela deixasse
impressões digitais pelo quarto
Заранее удалив свои собственные так,
чтобы остались только следы «А».