Gin-san takes history lessons, and teaches you how to hide your porn mags?
Tsukuyo tries to teach Seita history, the subject he's not great at. However, her training (?) methods end up leaving him scarred, which makes desperate Seita ask Gin-san to take over as his tutor...
In the third year of the Wado era, she moved 
the capital from Fujiwara-kyo to Heijo-kyo,
 نقلت العاصمة من فوجيوارا-كيو إلى هيجو-كيو خلال السنة الثالثة من حقبة وادو
En el tercer año de la era Wado,
 trasladó la capital de Fujiwara-kyo a Heijo-kyo,
No terceiro ano da Era Wado, ela mudou 
a capital de Fujiwara-kyo para Heijo-kyo,