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...
All right. Open up volume ten of Hana no Keiji.
(حسنٌ، افتح المجلّد العاشر من هانا نو كيجي (مانغا
Bien, abre el décimo volumen 
de Hana no Keiji.
Beleza. Abra o décimo volume de Keiji.