As Akari's summer break has finally begun, she wracks her brain to come up with fun, summery things she can do together with Sophie.
However, the ocean or anything outside are all a bad fit for a vampire like Sophie.
Then she has a moment of clarity and realized that a firework festival is at night and a summery activity, so she immediately begins preparing yukata.
Erie and Hinata and join them to go to the festival, however...
I'm jealous that they all 
look so good in yukata.
.أنا غيورة لأنّهنّ يبدين جميلات جميعًا في اليوكاتا
Tengo envidia de lo bien
que les quedan los yukata.
Me da envidia lo bien
que les quedan los yukata.
Che invidia, stanno tutte bene con lo yukata.
Que inveja delas, elas ficaram
tão bonitas de yukata.
Так завидую, что им идут юкаты.