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...
I thought I should teach him how 
Ieyasu actually fought at Sekigahara.
خطر لي تعليمه كيف قاتل إياسو واقعياً في سيكيغاهارا
Supuse que lo mejor sería enseñarle la manera
 en la que Ieyasu peleó en Sekigahara.
Achei melhor ensinar a ele como Ieyasu
 lutou de verdade em Sekigahara.