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...
If I think about it, though, 
she's asleep during the day.
،لكن بالتفكير في الأمر
.إنها نائمة طوال النهار
Genauer betrachtet,
schläft sie ja tagsüber.
Pero si lo pienso bien,
duerme todo el día.
Pero si lo pienso bien,
duerme todo el día.
Mais en fait, elle dort la journée.
A pensarci bene, però,
lei durante il giorno dorme.
Mas, parando para pensar,
ela dorme o dia todo.
Если задуматься, 
она ведь спит днём.