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?
When it's this hot?
مع أنّ الجوّ ساخن هكذا؟
Selbst, wenn sie so heiß sind.
¿Con tanto calor?
¿Con tanto calor?
Par cette chaleur ?
Con questo caldo?!
Nesse calor?
В такую-то жару?