"I'll fight if I have to put my hammocks up as sails!" 
Yuudachi undergoes a change.  She and the other girls are undergoing a massive upgrade, and Fubuki is sad because she's being left behind.
something must've happened.
فلا بدّ أن شيئاً ما قد حدث
que debió pasar algo.
dev'essere successo qualcosa.
alguma coisa deve ter acontecido.