Arc Fatigue: The Psycho Lesbian antics of Shiraume (who doesn't contribute to the plot in any real manner, not even by fighting) and the twins Kyo & Kyo Sawagi (who decide to fart around with getting Sen's attention due to the long haired twin's crush on her) take up 3 episodes, while the actually focus of the show is put on hold for them.
Cult Classic: By no means as mainstream as most anime, it has great animation and a great concept of Shonenizing an everyday occurrence like shopping in a grocery store
No Yay: Despite the fanservice, the Furo Scene with Ume and Shaga comes off as borderline rape. Mostly because it is. For episode 9 when Ume practically starts molesting Oshiroi.
The Scrappy: Compared to the other characters, Ume is intensely unpopular among fans of the show because she's a bland Psycho Lesbian archetype who harasses and abuses Satou for utterly ridiculous reasons.
Take That, Scrappy!: Some fans were pleased when Ume gets soundly defeated in volume 10 in a bento brawl.
Woolseyism: The fansubbers have been doing a very good job with this series as a whole, but then you get lines like this:
Oshiroi: "This is fappable! This is totally fappable! Do want!"
