Kazuya tries to clear the misunderstanding Chizuru is under, all while enlisting Sumi's help to get her a fitting birthday present.
This is the difference 
in potential between us.
هذا الفرق في المقدرة بيننا
Aus ihr lässt sich einfach
weit mehr rausholen …
Qué diferencia de potencial.
Qué diferencia de potencial.
Ecco la differenza di potenziale che c'è tra di noi.
Esta é a diferença
de potencial entre nós.
Вот она — разница в потенциале.