Hikari and her sister are off for Europe.  But their plans are interrupted when the Fusou naval fleet is struck by a newly emerged Neuroi nest.  It's up to Takami to defend the fleet against this unexpected threat, but she's overwhelmed by the sheer number of enemies.  When she uses a dangerous technique to stave off the foes, it's up to the inexperienced and underpowered Hikari to protect the fleet...
I'll fight in her place!
!سأقاتل بالنيابة عنها
Ich werde an ihrer
Stelle kämpfen!
¡Pelearé en el lugar de mi hermana!
¡Pelearé en lugar de mi hermana!
Je me battrai
à la place de ma sœur !
Combatterò io al suo posto!
Eu lutarei no lugar dela!