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...
Which year did the Battle 
of Sekigahara take place?
في أيّ سنة جرت معركة سيكيغاهارا؟
¿En qué año fue la batalla de Sekigahara?
Em que ano foi a Batalha de Sekigahara?