Gintama° - episode 4 - 28 Apr, 2015

Overall episode #269 Part A Displeased with Tsukuyo's way of tutoring, Seita asks Gintoki to help him out with his studies instead. Gintoki is then forced to teach Seita history, but it goes off course; Gintoki's excuse being that Seita must first be interested in History to learn it properly. Part B Due to his strict parents, Shinpachi is asked out by Takachin to hold on to his ecchi mangas until it is safe. Now it becomes Shinpachi's problem to hide them from his sister. The young man asks the porn-mag-hiding veteran Sakata Gintoki for assistance. (Source: Wikipedia)