Kirika and Shirabe attempt to recover Dr. Ver so that he can treat their mom.  They run into Hibiki, whose fusion has progressed to the point where she can fight a Noise with her bare hands.  Dr. Ver injects them with a LiNKER boost, and they attempt to use their ultimate songs, which might kill them.
I won't let you two
لن أدعكما
Ich werde euch beide …
¡No dejaré que usen su Canto de Cisne!
¡No permitiré
Je vous laisserai pas utiliser
votre chant du cygne !
Non vi lascerò
Eu não vou deixar vocês duas
 usarem suas Canções Soberbas!