With midterms coming up, Yatogame's grades are in trouble! So Jin agrees to help her study... and comes up with a method that makes use of her very biased knowledge! But after spending all night coming up with the idea, Jin faces trouble himself... Meanwhile, as the Chiba-born Teppei stresses over his upcoming exams, Jandara-senpai gives him a traditional Mikawa good-luck charm...
In 1543, the Portuguese brought what 
item to Japan via Tanegashima?
في 1543، ما الذي جلبه البرتغاليون
إلى اليابان عبر تانيغيشيما؟
Im Jahr 1543 hat Portugal welchen Gegenstand
über Tanegashima nach Japan gebracht?
En 1543, qu’apportèrent les Portugais
à Tanegashima ?
Nel 1543, quale prodotto venne introdotto
in Giappone dai portoghesi a Tanegashima?
Em 1543, os portugueses trouxeram 
que item ao Japão por Tanegashima?
Что в 1543 году португальцы привезли в Японию через Танэгасиму?