Alternative Character Interpretation: Is Miharu really as clueless as she seems, and just innocently happens to constantly end up in compromising positions with Yukinari? Or is she a Covert Pervert who's bent on ensuring Yukinari doesn't get away from her, and having fun at everyone's expense while she's at it? (This applies more to the anime, where we see much less of Miharu's thought processes than the manga.)
The second ED, "...And Then", has an incredibly catchy beat and vocals to go along with it. Miharu is even shown skipping in tune with it.
The second OP for that matter — even without the rampant nudity, the song alone is extremely peppy and fun.
Base-Breaking Character: Kirie Kojima. Some find her merciless beating of Yukinari uncalled for. However, others find her merciless beating of Fukuyama completely justified, and as the series progresses, she improves and hardly ever beats up anyone besides Fukuyama anymore.
Crosses the Line Twice: The Intended Audience Reaction regarding all the sexual harassment: Fukuyama to Kirie, Kosame to Kirie, Fukuyama to Koyomi, Lisa to Yukinari, Fukuyama to Miharu, Maharu to Yukinari, Fukuyama to... anything female, really. Whether it succeeds, falls flat, or comes across as horrifying really depends on the viewer, the principals, and the occasion.
Fridge Horror: Lisa is an unstable 15 year old girl, who regularly tampers with dark forces she barely understands. While it's treated comically, it isn't hard to imagine how horribly it could go wrong for her. Like if she were to accidentally summon a being that was beyond her control, with the possibility of it turning on her. Or if one of her spells backfired in such a way that she wound up in the Nether Realm, instead of bringing "them" to our world.
Growing the Beard: Most people seem to agree that the second season of the anime (from episode 12) is considerably better than the first, although things actually start to improve around the seventh episode.
In episode 2, where Fukuyama debuts with his Establishing Character Moment of groping three female classmates of his, the second girl says, "Oh, Fukuyama, save some for me." The humor in this is that said girl is voiced by Amy Kincaid, who is married to Liam O'Brien, who voiced Fukuyama.
Additionally, much like the Psycho Lesbian moment above, thanks to the male character's actions when switching with her, it also leads to her character discovering she now has unwanted female suitors at one point.
In the 4th episode, she straddles Kirie in bed, after stripping down to her panties, while blushing about wanting to resume "where they left off" at the school. And is only narrowly prevented from raping her, when she gets trampled by one of the spirits Lisa released, which allowed Kirie to escape.
During their match in the girls fight competition, Kosame drops all pretense of grappling with Kirie and goes so far as to lay atop her while slipping her hands under Kirie's bra to fondle her directly.
Kosame:[dreamily, nuzzling Kirie's breasts] Oh, Ms. Kirie, ever since I met you, I've wanted to do this. Your skin is perfect. Kirie: [trying to crawl away] Make it stoooop! Quit it! Kosame: (happily nuzzling Kirie's back) Uh-uh. Kirie:[indignant]LET GO OF MY BOOBS!! Kosame:[suggestively] They're MINE now.
The same episode has Kosame save Kirie by taking a punch from Lilica for her, during the finals. While Kirie was disappointed that they lost, she was touched by Kosame's gesture and relieved that she hadn't been hurt; prompting Kosame to kiss her.
A later episode has Kosame chasing Kirie around the house while calling her "big sister". Which Kirie points out was ridiculous since Kosame was older than she isnote Kirie is only 16 years old, while Kosame is 19. Still, after Kosame tackles her and begins happily nuzzling her cheek against Kirie's boobs, she sighs and finally relents.
Kirie: [mumbling, with wry grin] Fine, you win. I'm your damn "big sister".
Memetic Molester: Kazaharu, Lisa, Hijiri, and Kosame, which unlike most other examples is pretty much canon with their personalities with the Black Comedy Rape moments they've been in.
Never Live It Down: Kirie. She's at her worst in episode 1, immediately coming across as violent, bullying, and both physically and emotionally abusive. Most people tend to overlook the fact that she outgrows her abusive tendencies by the second season, behaves more like an actual friend to Yukinari and even has a heartwarming moment with Yukinari near the end of the series.
The Scrappy: Kazuharu Fukuyama, an obnoxious, rich pervert with no character development, compared to his superior sister
Unintentionally Sympathetic: Lisa may be horny and willing to have Kosame pop a cap in Yukinari, if he refuses her, but... she's really not all that bad. Instead, she seems more like a ditzy girl who's simply trying too hard, rather than creepy. And, in her own twisted sense, she really does care about Yukinari. So you kinda end up feeling sorry for her, knowing that all her attempts to get with him are doomed to fail.
Unintentionally Unsympathetic: Kirie. Her abuse of Yukinari is Played for Laughs, but most fans don't find humor in her horribly beating him over things that aren't his fault. Case in point: Near the beginning of the first episode, she accuses him of being a pervert for accidentally walking in on her while she was in the shower. When Yukinari explains that it wasn't like that, she switches from accusing him of peeping on her, to taking offense for thinking he found her unattractive. So she smashes his face in, with her knee, striking him hard enough to draw blood and knock the guy off his feet, resulting in the back of Yukinari's head smacking the tub, knocking him unconscious. Not only was this completely unwarranted, she had entered Yukinari's house without telling him. Meaning, he got beaten up for just entering his own bathroom; not knowing she'd be there.
What Do You Mean, It's for Kids?: The series was mildly controversial when it came over to the United States; Geneon had to put a warning on the back (something usually only done for hentai) advising stores not to sell it to people under 17. It averts the usual non-nude ecchi that was popular at the time with detailed, graphic nudity and sexual situations. So how on Earth did its manga run in the same shonen magazine as squeaky-clean manga like Angelic Layer?!
The Woobie: It is impossible not to feel sorry for Yukinari seeing as how the poor kid is treated like crap by his peers; has an allergic reaction which flares up if he happens to touch women, which he developed as a result of being bullied by girls his entire life. He's beaten up nearly every day by the closest thing he has to a friend, nearly all the main characters with the exception of Miharu, Koyomi, and Lisa have either used/abused him; especially Kirie. At one point, he even wonders what he's done did to deserve any of it, considering he's nice and supportive to those around him.
Woolseyism: The end of the first season has a line made more humorous in the dub where in a Hot Springs Episode, Miharu, for no good reason, gets up and exclaims about a new year. Kirie, after stating it's not a new year, tells Miharu she's naked and to get back down. In the dub, Kirie actually says "Miharu, put those away."
, has an incredibly catchy beat and vocals to go along with it. Miharu is even shown skipping in tune with it.