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?
But if you can, I'd like you to prove 
that you are not Nanase Karin.
.لكني أودّ منك أن تثبتي أنّك لست ناناسي كارين رجاءً
Aber dann musst du auch beweisen,
dass du nicht Nanase Karin bist.
Pero entonces, demuéstrame
que no eres Karin Nanase.
Pero entonces, demuéstrame
que no eres Karin Nanase.
Si tu en es capable,
Ma se ci riesci,
Mas se puder, gostaria que
provasse que não é Karin Nanase.
Но по возможности
докажи, что ты — не Карин Нанасэ!