The summer heat is on!
Koizumi-san looks at the trio loudly suffering from the heat with disdain while she continues on her ramen pilgrimage. 
Yuu wills herself to follow her, and Koizumi-san declares that she will be having "hiyashi" ramen.
What exactly is this "hiyashi" ramen?
What are you talking about?
عمّ تحدّث؟
¿De qué hablas?
¿De qué hablas?
Qu’est-ce qui t’arrive ?
Do que você tá falando?
О чём это ты?