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 why I'm using it now.
لهذا أستخدمُه الآن
Deshalb setze
ich es ja jetzt ein.
Por eso lo uso ahora.
Por eso lo uso ahora.
C’est justement pour ça
que je vous en réinjecte.
Proprio per questo l'ho usato ora.
É por isso que estou usando isto.