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...
Your personnel selection 
method is way too sloppy.
أسلوب تعيينكِ للآخرين جانح للغاية
Fue una mala decisión de personal.
Sua escolha de pessoal
 foi muito superficial.