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...
Vampires don't have a 
metabolism like humans do,
،مصّاصو الدّماء ليسوا بحاجةٍ للاستقلاب مثل البشر
Vampire haben keinen
Stoffwechsel wie die Menschen,
Los vampiros no tienen
un metabolismo como los humanos,
Los vampiros no tenemos
el metabolismo de los humanos.
Les vampires n’ont pas le même
métabolisme que les humains.
Il metabolismo dei vampiri
non è come quello degli umani,
Vampiros não tem um
metabolismo como humanos,
Вампирский метаболизм
 отличается от человеческого,