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've never even read stuff like that...
لم يسبق لي قراءة أشياء كهذه
Jamás he leído ese tipo de cosas...
Nunca li essas coisas.