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.