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'll present an argument on her own, 
literally die for it on her own,
،ستقدّم حجّة بمفردها وتموت لأجلها بمفردها
Bringt ein Argument,
für das sie wortwörtlich stirbt,
Ela apresenta um argumento próprio,
literalmente morre por ele
Сама даёт объяснение, 
сама умирает за него,