Shimohara, Georgette and Hikari are out on patrol when they find the whole lake near the base has frozen over!  It's an ice Neuroi!  They engage the enemy, but it's too cold, and freezes their units solid.  The Neuroi then proceeds to freeze the entire base!  With no one else able to launch, it's up to the three of them to take out this frozen foe.
That's why you're a fake countess!
!لهذا أنتِ كونتيسة مزيّفة
Deswegen bist du auch
ein Hochstaplergraf!
¡Por eso eres una condesa falsa!
¡Por eso eres una condesa falsa!
Ce qui explique
ton faux titre de comtesse !
Lo dicevo io, che sei una finta contessa!
Por isso você é uma 
condessa de araque!