Itsuki, Nayuta, and Miyako have a hard time dealing with the cold and head down to Okinawa. The next day, they visit a remote island so Itsuki can do some research and Nayuta decides to flail around naked in the water. Miyako is awed by what she's seeing and eventually jumps into the water naked, as well. Two days later, Itsuki is invited by his illustrator to go to Hokkaido, where they try various local cuisines. However, Itsuki finds out that Setsuna had been ignoring a deadline...
That's right. Kids should 
just stick to their juice.
Ganz genau,
Kinder bleiben brav bei ihrem Saft.
Así es. Los niños que beban un refresco.
Así es. Los niños a beber refrescos.
Exactement. Les gosses
se contentent de jus de fruits.
Giusto. Per le ragazzine
solo succo di frutta.
Isso mesmo. Tome suco,
 que é coisa de criança.
Вот-вот, деткам надо пить сок.