Masachika is having trouble studying for exams until Alya decides to wager a favor on how well he does. When Alya discovers she wasn't invited to celebrate Masachika's birthday, she spends several days questioning just how close they actually are.
Huh? Oh... is that so?
ماذا؟ حـ... حقّاً؟
Hä? Ach so?
¿Eh? ¿En serio?
¿Eh? ¿En serio?
Ah… Ah oui ?
A-Ah, davvero?
Hein? Ah... É mesmo?
А-а… Вот как.