The girls meet a new magical girl, Usagi!  But when the new girl turns out to be a monster, they'll have to become "a magical girl who's anxious to fight the enemy that's right in front of them, and a magical girl who's started to get worried about things at the worst possible time, and a perverted magical girl who's getting excited to realize that he's actually a boy!"  Can they break out of the spell and transform by giving a plausible explanation for what they'd do with 150 crabs?
I can't believe Usagi-chan was a monster.
لا أصدّق أنّ أوساغي-تشان كانت وحشاً
Ich kann nicht fassen, dass
Usagi-chan ein Monster war.
Je n’en reviens pas 
qu’Usagi était un monstre.
Non riesco a credere che Usagi-chan
fosse un mostro.
Não acredito que a 
Usagi era um monstro.