Bossun and Himeko's personalities are still switched on the school ski trip, so imagine the complications when it's time to change clothes or take a bath! And complicating matters is Saaya, who has a crush on Bossun but doesn't know that he's effectively Himeko right now!
But y'know, our voices haven't changed, 
so even if we do talk to people,
Pero como intercambiamos hasta las voces,
Mas sabe, nossas vozes não mudaram,
 então se falarmos com os outros,