Miku is missing after the explosion at the Sky Tower, but there's hope she might still be alive.  Despite the danger, the wielders decide to try and recover her from Fine's clutches.
I shouldn't have let go of Miku's hand.
ما كان ينبغي أن أفلتَ يد ميكو
Ich hätte Mikus Hand
nicht loslassen sollen.
No debí soltar la mano de Miku.
No debí soltar la mano de Miku.
C’est le seul lien
que je n’aurais jamais dû briser.
La mia mano in quella di Miku...
Essa mão que segurava 
a mão da Miku não deveria...