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.
That's the perfect solution for this situation,
،ذلك هو الحلُّ الأمثل لوضعٍ كهذا
Das ist die perfekte Lösung
für diese Situation!
¡Es la solución perfecta 
para este problema!
¡Es la solución perfecta a este problema!
C’est l’attaque parfaite
pour cette situation.
La soluzione perfetta
in un momento come questo,
É a perfeita solução para esta situação,