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.
For Hibiki-kun, you are the most important tie
بالنسبةِ لهيبيكي-كون، أنتِ العُقدة الأهمّ
Für Hibiki bist du
ihre größte Verbindung …
Tú serías el lazo más importante 
que tiene con su vida cotidiana.
Tú eres el lazo más importante
Le plus important pour elle,
c’est son quotidien et ses amies.
Tu, la sua migliore amica, sei ciò che Hibiki ha
Para a Hibiki, 
você é o mais importante laço