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.
it was in the best interest of both parties 
to avoid attracting attention.
كان من صالحِ الطرفَين أن يتجنّبا لفت الانتباه
es wäre für beide besser gewesen,
unerkannt zu bleiben.
a ninguno le convenía llamar la atención.
a ambos les debía convenir 
no llamar la atención.
les deux parties auraient préféré
se réunir en secret.
sembrava che avessero in comune
di non voler attirare l'attenzione.
era interesse das duas partes
 evitar chamar tanta atenção.