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?
Oh.
.هكذا إذًا
Ach so!
¿Sí?
¿Sí?
Ah bon…
Ah, davvero?
Oh.
А...