The stakes get even higher in the battle between Arc Ruler Erde and the combined team of Subaru and Itsuki when the duo from Seventh Flame learn that the price of failure is death. 
Who knows?
لا أدري
Hm, ich weiß auch nicht so recht,
Quién sabe.
Quién sabe.
Bonne question.
Chissà!
Vai saber?
Да, вопрос.