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.
Isaku-san!
!إيساكو-سان
Isaku-san.
¡Isaku!
¡Isaku!
Isaku !
Signorina Isaku!
Isaku!
Исаку!