When Sophie enters the living room, she finds Akari and Hinata staring tired and defeated at the table.
She then finds out that summer break is almost over, yet almost none of their homework is finished, 
which is why the two of them are doing a homework marathon.
Then, with progress already being slow, Erie makes an appearance.
She suggests that she could help with the homework, however...
What could have happened?
ماذا حدث يا ترى؟
Was mag dafür nur der Grund sein?
¿Qué habrá pasado?
¿Qué habrá pasado?
Quelle peut bien en être la cause ?
Cosa sarà successo?
Qual será a causa disso?
Что же могло произойти?