Poor Hazumu. First he gets turned down after confessing his love to Yasuna. Then, after climbing his favorite mountain to sulk over being rejected, a passing UFO crashes on him and kills him. Then the aliens put him back together again... as a girl! Worse, they then announce to everyone exactly what they did.From Satoru Akahori, the creator of Saber Marionette J, Sorcerer Hunters, and Maze Megaburst Space."Kashimashi" is both the name of the town and school where the series is set ("Kashima-shi") and the Japanese word for "noisy". A Japanese proverb holds that "when three women get together, it's noisy (kashimashi)," the joke being that the kanji for "kashimashi" contains three of the characters (no pun intended) for "woman" or "female." (You may remember Tomo quoting it.)Hazumu provides a rare case of Gender Bender where the one whose gender has been bent doesn't seem to really care that much about the predicament. In fact, it's possible she is actually happier this way but straight from the get go without a lot of the protesting that would appear in other series. The love triangle in the show also gets presented in a pretty straightforward way, all but completely disregarding that the story is in fact about two girls who try to win the affection of another girl.
All Men Are Perverts: Asuta's attraction toward Hazumu is treated as such, which leads to some awkward situations, and even Asuta is embarrassed to be attracted toward his (formerly male) best friend.
Also Hazumu's dad, who seems waaaaay too into shared father-daughter special time (usually involving nudity or dad taking naughty pictures of Hazumu). Hazumu's mom will have none of it and will combat it with martial arts holds.
And when her mom isn't around, Jan Puu with her boxing glove bazooka is happy to help out to defend the modesty of her gender bent crush.
Childhood Friend Romance: Hazumu and Tomari in both the anime and manga. In the manga, Hazumu finally shakes off her indecisiveness and cries out for Tomari over Yasuna in the last chapter. The anime OVA episode is a bit more spectacular, both reversing the Unlucky Childhood Friend end of the previous episode and giving the two an elaborate wedding ceremony (Hazumu carries Tomari◊).
Declaration of Protection: By Tomari to Hazumu. and possibly foreshadowing the ending considering the possible meanings of the phrase.
Different for Girls: Inverted — Hazumu mostly takes her change in stride; it's tomboy Tomari, of all people, who insists on giving her lessons in being a girl. Hazumu's only difficulty is when she has to buy her first bra.
Dirty Old Man: Hazumu's dad seems a bit too eager to want to take a bath with her. He also seems too interested in taking pictures as well.
Does Not Like Men: Yasuna and her inability to perceive men's faces (according to "Alien-san" in the manga, this is some kind of genetic disorder) keeps her from having any relationships with men, though in a slight subversion, this also affects her relationships with other girls.
Dramatic Wind: The series could be a commercial for building windmills in Tokyo.
Dull Eyes of Unhappiness: Yasuna displays them from time to time. She displays them again in episode 11 after losing her ability to see women as well.
Emotional Powers: A relatively mundane version: When Tomari is in her P.E. class/club and experiencing strong emotions (e.g. thinking about her relationship with Hazumu), she subconsciously mobilizes her hidden reserves (no super powers) and is scoring school records or at least amazement from her teacher.
Expressive Hair: Tomari's pigtails react, when she's experiencing strong emotions.
First Girl Wins: Reversed in the episode 13 OVA, subverted completely in the manga.
Depends on which of the girls is viewed as first: Yasuna was the first introduced, but Tomari is Hazumu's childhood friend.
First Kiss: Although it's seen in the very beginning, we don't get the context behind it until episode 5, when Yasuna explains to Hazumu about her condition of not being able to see men for some reason, and rejected him because she thought he would eventually end up that way to her as well.
For Science!: The alien man uses this excuse largely to stay and observe Hazumu and normal Earthling relations. Turns out he had a good reason, on his planet, his people have a condition similar to Yasuna, and he was there to see if The Power of Love could cure it, which it does at the end of episode 12.
Friendly Enemy: Yasuna and Tomari realize early on that they are rivals, but develop a friendship out of their mutual love for Hazumu
Gayngst: Very mild and mostly in the first manga volume, but it's still there (a concept apparently foreign to "Alien-san").
Gecko Ending: The manga hadn't finished yet when the anime was made.
Gratuitous English: Mainly in the anime's OP ("eveybiddy, prease to meet you," etc.); the NASA scientists in the first episode speak correctly, but the wording is a bit...off. ("I'm afraid that that's the fact." "The estimated arrival point is...figured!")
Namiko-sensei seems to use this trope a lot as well, usually right before something happens to her.
Hidden Eyes: Hazumu always has these whenever she's shown as a male. Even as a young child. The audience only sees her eyes when she gets turned into a girl.
How We Got Here: The very first scene actually happens at the end of episode 5.
Imagine Spot: Several characters do this, usually Asuta and Hazumu's dad.
Innocent Fanservice Girl: Hazumu. Justified as she just turned into a girl and is therefore unfamiliar with how they should act, such as flapping her skirt to cool her legs, and asking Asuta to measure her bust size.
Invisible to Normals: The alien and Jan Puu to normal people. They only allow certain people to see them, such as Hazumu and her parents, although Namiko is able to sense the alien's presence at first.
Intangible Man: "Alien-san" does this during a ghost hunt in Hazumu's school to make it more realistic.
Love Confession: Hazumu gives one to Yasuna in the beginning, but she's rejected by her. Turns out that Yasuna has a condition where she is unable to see men, but was able to see Hazumu, and feared getting too close to him would make him "invisible" to her as well. As a result, Tomari uses that incident against her a couple of times later on when Yasuna starts getting too friendly with Hazumu again.
Asuta understandably thinks he got one in episode 7 from Hazumu, but it turns out he misinterpreted it.
Love Letter: Tomari gets love letters from other girls, to her annoyance.
Panty Shot: Averted, but referenced in a wordless interstitial during the Different for Girls episode when the other girls are shown teaching Hazumu various techniques for overcoming the panty shot potential of their stereotypically short-skirted school uniforms while climbing stairs.
Parental Abandonment: Averted with Hazumu, who has both parents, played straight with Yasuna, whose parents are never around due to work and the fact that she distances herself deliberately from them because she has a strange condition where she's unable to see men, except Hazumu.
Pervert Dad: Played straight for the most part. Strangely enough in one scene he gets to act like normal and doesn't seem unusual at all.
Pun-Based Title / Visual Pun: The kanji 女 (pronounced onna) means "woman". Kashimashii is one possible pronunciation of the kanji 姦; this kanji is composed of three copies of 女, arranged in a triangle. So, the title can be interpreted as representing a triangle of three women. And to top it off, the place where the story is set is also called kashimashi, albeit written with different kanji: 鹿縞市, meaning "Kashima City". (Note that the original title of this manga is written phonetically, so it doesn't actually use the 姦 kanji, making it a Stealth Pun of sorts.)
Robot Girl: Jan-Puu (although, according to the English dub, she's a clone and thus a biological being. The subtitles (fansub) are sorta ambigous).
The One Guy: Asuta functions as much in the main group's social circle, and one of the manga omake reveals that Hazumu's genderbend has resulted in the other male member of the gardening club becoming this. He wasn't happy about it.
There Are No Therapists: Even by Japanese standards this is a particularly egregious example. Hazumu gets killed by a spaceship landing on her, comes back to life through alien intervention, gets turned into a girl from the DNA up, gets her entire ordeal broadcast to the entirety of the people of Japan, is plagued by the paparazzi, exposed to questionable changes in care by her parents, and the only help she gets is from her childhood friend and the girl that rejected him in the first place.
"The Reason You Suck" Speech: Tomari uses Yasuna's rejection of Hazumu and hurting her feelings as the reason why the latter shouldn't be trying to spend so much time together anymore.
Un-Person: Played for Laughs with Asuta. The girls, even his best friend Hazumu, will often treat him as a less important character, such as inviting all the girls to a day at an aquarium (and even specifically telling him no), or planning an event at a local cafe, and not inviting him (although he happened to be there anyway coincidentally). However, at other events he does get invited, such as the beach, but is again not treated as important.
Unrequited Love: Both Tomari and Yasuna feel this way from time to time. Played straight with Asuta and Namiko, although the end of the OVA hints that the alien man may be in fact returning the feelings as they seem to be preparing to kiss each other before turning invisible.