A new student arrives from Russia on exchange, immediately confessing her feelings towards Moroha. Moroha is accommodating, but Shizuno has suspicions.
I guess we do have a custom like that, but...
Äh, den Brauch gibt es schon, aber …
Bueno, supongo que sí existe 
la costumbre, pero...
Bueno, supongo que sí existe 
esa costumbre, pero...
C’est vrai que cet usage existe, mais bon…
Ehm, ecco, abbiamo un'usanza del genere, ma...
Ah, realmente há um costume assim.