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...
Why's this guy acting like some 
kind of porn-mag-hiding strategist?
لمَ يتصرّف كما لو أنّه استراتيجي إخفاء مجلّات فاضحة؟
¿Por qué actúas como un estratega 
en la ocultación de revistas?
Por que ele está agindo como um tipo
 de estrategista em esconder pornô?