Subaru laments that he could not do anything or save anyone, and has no options left. Exhausted, he suddenly takes off running at full speed as if he's made a decision... To save Emilia, Subaru approaches Crusch to negotiate the formation of an alliance. His terms are a bit difficult for Crusch to believe, but she can see that Subaru isn't lying.
I think this human here will be pretty 
useful against the White Whale.
أعتقدُ أنّ هذا البشريّ سيكون نافعاً
جدّاً أمام الحوت الأبيض
Gegen den Weißen Wal
bin ich überraschend nützlich.
creo que puedo ser muy útil
contra la Ballena Blanca.
creo que puedo ser muy útil
contra la Ballena Blanca.
mais je vous serai très utile
contre la Baleine blanche.
penso che l'umano qui presente 
possa esservi utile contro la Balena Bianca.
eu acredito que este humano aqui vai
 ser bem útil contra a Baleia Branca.
но поверь, я могу здорово 
пригодиться в битве с Белым китом.