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...
How am I supposed to sense the 
numbers by instinct alone?!
كيف أقدر على تحديد الأرقام عبر الغريزة وحسب؟
¡¿Cómo quieres que lo haga 
con los ojos cerrados?!
Como eu vou saber o 
número só por instinto?