Isaku is frustrated with Keiya when he doesn't even try to pass his tests at school. They agree that she'll give him a reward if he passes his next make-up exam, but the reward he asks for is nothing Isaku could have expected.
If you're going to be here,
then do your duty!
!إذن قم بواجبك إن كنت ستبقى هنا
Wenn du an die Schule kommst,
dann tu das auch ordentlich!
Si vas a venir a la escuela,
tómatelo en serio.
Si piensas quedarte,
cumple con tus obligaciones.
Fonds-toi dans la masse,
si tu viens en cours !
Se vuoi rimanere qui, 
allora comportati come si deve!
Já que vai ficar aqui,
cumpra o seu dever!
Раз ходишь в школу,
не смей забивать на учёбу!