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...
When you get home, wash your hands first.
عندما تعد للمنزل، اغسل يديك أوّلاً
Lávate las manos al llegar a casa.
Quando for para casa,
 lave as mãos antes.