The Daily Lives of High School Boys (or “Nichibros” for those who speak in 140 characters) is about high school boys, unsurprisingly. What’s surprising to me, however, is how it attacks the subject of female siblings.
Their faces are all shrouded!
Speaking from my own experience, I saw the sisters of my high school friends as alien, inscrutable beings. It’s not even that boyish “eww girls!” disgust. I felt nothing could be gained by trying to get to know them, so I never did. And then again, I was always the antisocial prick in high school.
Back to talking about the anime! It’s funny because it portrays how boy-centric the show is. It’s a world where the sisters are walking punchlines, where they’re called not by their own names but by their relation to the brothers. “Hey, Tadakuni’s Sister!” is already funny in itself.
Of course, the show reverses this in the post-ED part of episode 3. It works both ways!