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[[caption-width-right:240:Shameful!]]

->''"New science teacher, Machiko Mai, is a young and attractive woman with healthy mind and body. Being around her makes everyone happy. Students like to play practical jokes on her, but no matter how many times they cause troubles, she does not get upset. She always tries hard to understand her students."''
-->-- Studio Pierrot's description of the series

''Maicchingu Machiko Sensei'' is a series that could be best described as a loose compilation of {{Fanservice}} or {{Ecchi}}, starring a female schoolteacher and her pervy students. Based on the manga of the same name and animated by Studio Pierrot (which was animating mega-hit ''Manga/UruseiYatsura'' at the same time), it aired from [[TheEighties October 1981 to October 1983]] in Japan as a [[GettingCrapPastTheRadar kids']] [[ParentService show]]. Given its blatant sexual content while airing in a "family" timeslot, it naturally ran into trouble with the [[MoralGuardians PTA]] (who get [[TakeThat called out]] in the show at least once). Despite this, it managed to survive for 95 episodes. Later on, the series spawned half a dozen live-action movies.

Machiko Mai, a talented young woman fresh out of grad school, lands a job as the new science teacher at Arama Academy, a Japanese junior high. Unfortunately (for her), Machiko's students, lead by resident troublemaker Kenta, think it's utterly hilarious to grope her, flip her skirt, or find new and exciting ways to get rid of her clothing. Even worse, the very universe itself seems to think it's funny too – despite her best efforts, almost every adventure ends up with her at least slightly humiliated (i.e.: stripped to her bare ''pantsu'' if not completely naked). Two of her coworkers also take it upon themselves to pursue her. However, Machiko proves on multiple occasions she can easily turn the tables on anyone who messes with her or her students.

Add a cast of ninnies and perverts, a standard children's show plot, and you have one of the most infamous (and earliest!) {{ecchi}} series in history.

Creator/DiscotekMedia licensed the series for streaming on Crunchyroll in 2016, on which the first 45 episodes were posted in batches every few months through January 2017. Discotek itself posted the first five episodes on its [[https://www.youtube.com/user/Sjohnson20/videos official YouTube channel]] in June 2017. In mid-January 2018, they posted the other 70 episodes they had translated, only to pull ''all'' episodes less than a week later, not coincidentally at the same time Episodes 46-75 became available on Crunchyroll.

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!!Tropes for this series include:

* ACupAngst: Tenko. In Episode 9, "Get the Groper!", she realizes she's the most flat-chested of her group. How? A {{chikan}} ignores her, preferring to harass her friends.
* ATasteOfTheirOwnMedicine: Sometimes, the girls strip Kenta's trio of their clothes as punishment for their pranks.
* AbhorrentAdmirer: Maruko to Kenta because he don't like fat girls.
* AbsoluteCleavage: A male variant with Mr. Kagoshima.
* TheAce: Machiko is not just a teacher. She can act, dance, sing, fight, swim, pick up any random skill on a dime and is otherwise perfect aside from her inability to keep dressed.
* ActionGirl: Despite being a victim of a ''lot'' of pranks, Machiko often gives back as much as she takes. She's more athletic than the rest of the staff (including the phys ed teachers), able to pick up skills like skateboarding in one or two tries, and knows martial arts of some kind -- several episodes involve her beating the crap out of someone who goes too far.
* AllClothUnravels: One gratuitous example happened in Ep. 14, "The Skating, Falling Roundup", an episode with no fanservice at all… until the last thirty seconds when Kenta, ice-skating behind Machiko, finds a loose thread on her sweater. He pulls it and sends her spinning across the ice, revealing she had been skating without a bra.
** Said sweater gag was used in the first live action movie — Machiko's crochet-like sweater gets a single thread snagged while at home, and by the time she makes the full run to her classroom, her shirt is gone.
* AllLoveIsUnrequited: Pretty much every crush in this series is one-sided. This is true of both the students and the faculty.
* AllMenArePerverts: Try to find even ''one'' named male character in this series who isn't. Even Hiroshi, the resident brainiac who's always reading, has it hidden deep within.
* ArentYouGoingToRavishMe: Happens at least twice.
** Kenta frequently flips his female classmates' skirts to embarrass them. [[FatGirl Token fat girl Maruko]], who has a crush on Kenta, patiently waits her turn, but when Kenta passes her by, she's so furious she pounds his head into the pavement.
** As mentioned above, Tenko felt left out when she was the only one of her friends who didn't get groped on the bus, assuming (correctly) it was due to her childish figure. When Kenta's extend-o-hand – which he was ''trying'' to use to grab Tenko's class notes – end up groping her chest instead, she's momentarily flattered… and then screams.
* BarbieDollAnatomy: Averted; see NippleAndDimed below. The "Box" mangas went even farther, with Machiko's naughy bits being non-explicitly visible a few times.
* BathingBeauty: Almost every episode has Machiko in the bath or at least the shower.
* BathtubScene: Many episodes include a scene with Machiko in the bath tub. One scene involved Kenta attempting to join her.
* BeachEpisode: Few of these. One of which even took place in Hawaii.
* BeautyContest: Machiko entered in a few of these. There was one episode in which she lost, which is surprising since everyone was in love with her.
* BecauseDestinySaysSo: It does not matter how, it does not matter where, it does not matter when -- somehow, some way, Machiko ''will'' lose her clothing, usually in the most humiliating way possible.
* BigBallOfViolence: One episode ends with all the characters getting into a fight with this effect. And, of course, [[OnceAnEpisode Machiko loses her top in the melee]].
* BodyPaint: A couple of instances of this in the manga. PlayedForLaughs, of course. It would have [[CompletelyMissingThePoint helped]] if Kenta's plan hadn't involved ''painting Machiko solid [[BlackFace black]]'' (instead of, say, trying to paint clothing or somesuch).
* ButtMonkey:
** Yamagata-sensei. He's head over heels in love with Machiko, but he's also a bit of a horndog and not above joining in with Kenta's schemes, only for them to backfire on Yamagata-sensei, spectacularly. He remains sympathetic because every so often, his schemes involve ''proposing''.
** The Vice-principal. To be the OnlySaneWoman in the show makes her a target of many FaceFault gags.
* BuxomIsBetter: Machiko's larger-than-average breasts are considered tantamount to a local treasure. Her female students (who, for the record, are just 12-13) are envious of her. And of course Kenta always greets her with a grope.
* CatchPhrase: "Maitchingu!" (or "Shame!"), which Machiko often says after something happens to make her lose an article of clothing, get groped, or have her skirt flipped up. Any one (or more) of these will happen OnceAnEpisode. Kenta considers it a great victory if she says it within his earshot.
* CensorSteam: Completely averted, as with [[ValuesDissonance most shows of the era]]. Do recall this was (at least technically) a ''kids' show'' that aired in a "family" timeslot.
* TheChewToy:
** Machiko, obviously! Everyone, including the universe itself, enjoys sexually harassing her and it's all for the viewer's amusement.
** Yamagata-sensei is the poster-boy for AmusingInjuries and is the series' ultimate ButtMonkey. The harder he tries to throw himself at Machiko, the more likely he'll end up badly hurt. Unlike Machiko, though, he often deserves it.
* TheChikan: Episode 9 features a man harassing the young female students on a bus. Initially Kenta is mistaken for the culprit, but Machiko and Kenta set a trap for catching the real culprit.
* ChildProdigy: Hiroshi. He's almost never seen without his trademark glasses and a book.
* ChildrenAreInnocent: [[AvertedTrope They really, really aren't.]] Some of them aren't up to speed on the {{ecchi}} parts of her situations, but all of her students at least think it's ''[[NakedPeopleAreFunny funny]]''.
* ChivalrousPervert: Special note goes to Fukuoka-sensei, who is ''teaching 7th-graders nude figure drawing.''
--> '''Fukuoka:''' A female in the nude is the apogee of beauty.
* CircusEpisode: Episode 20 has Machiko take part in a circus. The vice principal is worried because Machiko is performing in front of a large audience, [[GenreSavvy which means that she will end up with her clothes torn off]]. Her warnings fall on deaf ears. Sure enough, a tiger happens to get lose and tears Machiko's costume off.
* ClothingDamage: Machiko apparently wears clothes made of paper since they get ripped off very easily.
* ComedicUnderwearExposure: Arguably the ''point'' of the series, since Machiko flashes her panties even in the show's ''opening'', and it's inevitably PlayedForLaughs.
* CoveredInMud: Machiko ends up covered in muck from time to time, usually while losing articles of clothing. This was DoubleSubverted in the episode in which she helps her students fight against bullies by knocking them in a big mud pit (''everyone'' got covered in mud).
* DangerouslyShortSkirt: Most of Machiko's skirts. For example, in Episode 2, she learns how to skateboard while wearing her standard mini-skirt, giving dozen of {{panty shot}}s within just a few minutes.
* DefeatByModesty: Kenta's favorite move while wrestling women (two are school matches and one is a professional event). He does it to Machiko once. Later, he wrestles a blonde wrestler who doesn't seem to care much, averting this trope. In another episode, an American foreign student comes to school. He tries it on her and while it makes her angry, she takes the time to beat him up before covering herself.
* DirtyKid: All of the boys fit this trope but particularly Kenta, who is often the ringleader of the boys and works out several plots to grope, disrobe, or otherwise act pervy to Miss Machiko (or his female classmates). While his comrades have some standards, Kenta lives just to sexually harass every cute female in the show with Machiko as primary objective. He's basically a young [[Manga/UruseiYatsura Ataru]] with [[Manga/DragonBall Goku's]] voice.
* DistractedByTheSexy: Machiko cause this effect on nearly every male character in the show.
* DoggedNiceGuy:
** Yamagata-sensei, who frequently ends up getting mixed up with the student's plans, and CannotSpitItOut about his attraction towards Machiko.
** Hiromi, who has a crush on Hiroshi, the most serious student in class but is often [[ObliviousToLove ignored by him]].
* DudeMagnet: Machiko. It is rare see a male immune to her charm.
* {{Ecchi}}: This series may be the UrExample, as just about every other show with fanservice before this usually had it as secondary to the plot or as part of a TransformationSequence. In ''this'' show, fanservice often '''''is''''' the plot, or at least the byproduct of it. Relatively tame by today's standards, it still manages to do some things that would simply not fly on Japanese TV today, especially in its timeslot -- like showing nipples[[labelnote:*]] (although one could argue today's censoring isn't due to any growing power of Japanese MoralGuardians, but rather to create DVDBonusContent). ''In the opening and closing credits.''
* EvenTheGirlsWantHer: In Episode 85, Machiko adopts a {{Bifauxnen}} look (similar to Oscar from ''Manga/RoseOfVersailles'') and the vice-principal develops a crush for her.
* {{Fanservice}}: In some episodes, if you took out all the fanservice, there would be very little show left.
** However, sometimes episodes will have a relatively normal kids' show story and the fanservice comes completely out of nowhere. The ice-skating episode mentioned above is a good example.
* FanserviceExtra: Provided, in the anime, by the other schoolgirls or some random women.
* FatGirl: Maruko. Her size is why she's usually passed over during Kenta's pranks. Considering that she's the only girl who ''wants'' to be groped by Kenta ''and'' she's inhumanly strong, ignoring her rarely ends well for him.
* {{Flanderization}}: Machiko, particularly in the manga, ''particularly'' in the "Box" series of bonus comics the author released. Machiko goes from being a somewhat naïve, good natured young teacher who accidentally gets stripped and groped a lot to being easy to talk into stripping ''herself'', and who often [[InnocentFanserviceGirl doesn't even notice anything's wrong unless someone points it out to her,]] (and even then, she is more bemused than anything else).
* ForeignFanservice: Episode 23 has Judy, a friend of Machiko and a beautiful blonde (the only in all the show) american girl. She even perform a cheerleader show.
* FreezeFrameBonus: One Youtube user noticed that while a guy was trying to pull a perverted octopus off of Machicko, you could see detailed nipples (Well MORE detailed nipples considering the series had no qualms with them) when the swimsuit was almost completely off. [[GettingCrapPastTheRadar Kids' show!]]
* FunbagAirbag: Happened in the first episode when Kenta and friends steal Machiko's panties and try to run away, only for her to head them off around a corner.
* FuroScene: The series has a few episodes with these scenes. Expect one or more male students (or even a teacher) to sneak a peek. One episode had a teacher and student flying in a kite and landing in a furo by accident. Of course, the eponymous Miss Machiko and her students were there at the time and the men (mostly) hid themselves.
* GagBoobs: One memorable instance of this involved Machiko's breasts popping free from her shirt from a thief who had taken her as a hostage, which she used as a the start of a breast-and-karate-chop combo.
* GardenHoseSquirtSurprise: Used in the very first episode.
* GettingCrapPastTheRadar: It's a ''kids' show'' about a bunch of tween boys sexually harassing their teacher, who can't keep her clothes on for more than an hour or two at a time.
* GoingCommando: Machiko often goes braless, as evident by the number of pranks her students play on her which ends with her shirt removed and her breasts exposed.
* GroinAttack: In episode 8, after using a Frisbee that's attracted to women's underwear on the girls all day, Machiko gets a hold of one that manages to fly towards Kenta's underwear. Not lightly, it would seem.
* HandOrObjectUnderwear: Used repeatedly, although as a rule her breasts and bottom are fair game to be shown.
* HotForTeacher: All the male students love Machiko, but Kenta is especially obsessed with her.
* HotTeacher: Machiko naturally. ''Everyone'' is attracted to her at least a little bit, which is why ''no one'' stops her students' pranks. That, and the very universe conspires to leave her denuded, so any such efforts would be futile.
* HulaAndLuaus: There is an episode in Hawaii, which included every stereotype… and topless beaches, for some reason[[labelnote:*]] (because the entirety of Hawaii's "accessible" coastline is open to the public, there are no topless beaches – women who attempt this at, say, Waikiki or Lahaina, will be arrested for indecency)[[/labelnote]]. Also, hula girls apparently wear grass skirts low enough to display part of their buttocks. Considering the nature of this series, it shouldn't be that surprising.
* HypnoFool:
** Episode 10 involves Yamagata-sensei learning hypnosis in a convoluted attempt to make Machiko fall in love with him. Kenta attempts to mess with her, only to leave her with a mental GenderBender. She then goes to the men's room and attempts to use the urinal… then freaks out wondering where her *ahem* ''member'' went.
** Similarly, one of Manga!Kenta's favorite tricks is to convince a just-woken-up Machiko, whom he has almost inevitably stripped while she was asleep that she was going to go do something she previously refused to do. Examples from the manga include teaching class in the school pool, wearing a NakedApron to her class's cultural festival MaidCafe, or tormenting Yamagata-sensei in some way.
* IdenticalStranger: Episode 17, "Two Miss Machikos", features a Japanese-Brazilian heiress almost identical to Machiko. The only differences are that the doppelganger has reddish hair and blue eyes, while Machiko has brown hair and eyes (and, at least according to Kenta, the "fake Machiko's" breasts are bouncier). The two Machikos meet after all that episode's insanity and are shocked at their resemblance.
* ImagineSpot: Machiko is, most of the time, the undisputed protagonist of the Kenta and Yamagata's fantasies.
* {{Jerkass}}: Kenta. He sometimes can be a JerkWithAHeartOfGold but, with all his pranks and sexual harassment plus his occasional poor treatment of his friends, he's not the nicest guy.
* KarmaHoudini: The students rarely get punished for groping, flipping skirts, and undressing women, getting away with their antics by mentioning how “boys will be boys”.
* KimonoFanservice: This trope played out in at least three episodes. One episode featured Machiko acting in a historical drama, another was set during the Lunar New Year, and the third took place during a festival. In keeping with the tradition of this series, she lost her kimono every time.
* KiteRiding: In one episode, Kenta and Yamagata-sensei end up flying on a giant kite by accident and eventually fall into a sauna where the eponymous Miss Machiko is bathing (of course).
* LaserGuidedKarma: In some episodes, Kenta and his friends get stripped by the female students, sometimes with Machiko herself helping out. In one episode, Machiko had Kenta's mother called after Kenta took pictures of her in the bath. His mother stripped him down and spanked him in front of an audience, which was PlayedForLaughs. And no, nobody bats an eye at that either, so at least there's no DoubleStandard.
* LuminescentBlush: Every episode involves Machiko (and other girls) being placed in embarrassing situations, which involves lots of blushing.
* LustObject: Machiko for nearly every male in the show, especially for Kenta and Yamagata-sensei.
* MaleGaze: The camera often focuses on Machiko's curvaceous body. Seriously, even the opening start with a close-up of her butt in a leotard.
* MarilynManeuver: Kenta and his friends often put fans on the ground and other elaborate ways of getting Machiko's (or other female students') skirt up. There's also her classic "Maicchingu!" pose, which is a Japanese anime trope in and of itself.
* MarshmallowHell: Machiko gave one accidentally to Tamao.
* MegatonPunch: What happens when Yamagata-sensei happens upon Machiko at the exact wrong moment. Like, say, after she's woken up, but before she realized that Kenta has stripped her, ''again''.
* ModestyTowel: Subverted, since if she ever dons one it usually falls off. Including in the end credits.
* MsFanservice: Machiko to her students. And the viewers. Perhaps the most well known and UrExample in Anime.
* NakedFirstImpression: It's not surprising that this has happened to her more than once. One time, she was in the shower and a visiting tribal leader caught a glimpse of her and had to be physically removed. Another time, a man mistakenly entered her home and caught her in the tub.
* NakedFreakout: Considering that Machiko ends up naked OncePerEpisode, it has featured many subsequent freak outs. Although as Machiko is a [[GenkiGirl Genki]] PluckyGirl, her freakouts tend to be a cute pose, her saying [[CatchPhrase "maicchingu!"]] ("Oh, how embarrassing!"), and either smiling or [[MegatonPunch beating the everloving crap out of someone]].
* NakedPeopleAreFunny: A major point of the series. Be it slightly erotic fanservice or not, Machiko losing her clothing is ''hilarious'' (and ''very'' {{moe}}).
** The manga's first chapter is very similar to the first episode of the anime, except instead of biking across town in her underwear, Kenta tricks Machiko up a flagpole while only wearing a towel... and then steals said towel to use as a parachute.
* NiceGirl: Machiko. Her reactions to Kenta's pranks? A {{moe}} pose, her catch phrase, and moving on.
* NippleAndDimed: Machiko's nipples are openly visible, even in the ''opening''. How the hell was this aired as a kids' show again?
* TheNudifier: Kenta often comes up with very elaborate schemes to get Machicko's clothes off, which often reach near RubeGoldbergDevice levels of absurdity -- and always work.
* OncePerEpisode: Either she will lose her clothing (usually her shirt), her skirt will get flipped or ripped off, or she'll be groped, usually by Kenta. Or any combination of the above.
* OnlySaneWoman: The Vice-Principal.
* OpaqueNerdGlasses: Tamao.
* PantyShot: OncePerEpisode (at least). Provided by Machiko and her female students. Are so many that probably, before ''Anime/AgentAika'' aired years later, this show might have held the record.
* ParentService: Ooooh boy. The major reason this show wasn't killed off after two episodes. The demographics on the series viewership were absurdly skewed.
* PlayboyBunny: Machiko is shown in a bunny suit during the closing credits among other outfits. It says something when this series is so chock-full of fanservice that they had to cram a playboy bunny suit in during the credits for little reason.
* ThePrankster: Kenta.
* ProWrestlingEpisode: This series had a few episodes centering around either pro wrestling, Greco-Roman wrestling, or Sumo wrestling.
* PublicExposure:
** One episode showed the school art teacher painting Machiko. It's believed that he is painting her nude at first but we later find out that she was clothed for the session.
** Another episode had a pervy male teacher make a nude sculpture of Machiko, although she didn't pose for it.
** In yet another episode, her own students needed to raise money and talked her into stripping down to her underwear to take photos and send them into a magazine. Kenta tricks her into losing her bra and snaps a few photos of his own, [[OnceAnEpisode which is par for the course for this show]].
* PutOnABus: Mr. Fukuoka flew to another country in episode 52 and is replaced with another character, Mr. Kagoshima, introduced in episode 56.
* ReluctantFanserviceGirl: This is the entire concept of the show. The title character continually finds herself naked due to the actions of her perverted students, the occasional non-human, or the nature of the universe itself.
** Even more reluctant are Madoka, Hiromi, and Tenko – called by Kenta "the beauties of Arama Academy" – and sometimes also victims of his pranks. [[FatGirl Maruko]] is almost always excluded, much to her chagrin.
* [[RodandReelRepurposed Rod-and-Reel Repurposed]]:
** The first episode has Kenta using his fishing rod to steal Machiko's panties forcing her to chase him half-dressed.
** An episode has three little kids use this to lift Machiko's skirt and distract her while one of them steals some food.
** Another has Kenta uses a fishing rod with multiple hooks to catch not only Machiko, but also the skirts of three schoolgirls.
* {{Sarashi}}: Machiko wears it once due to being in a festival as a drummer. Kenta takes it as an opportunity to get her on a bike before she can tighten her robe, and the resulting bouncing causes the sarashi to come undone. He doesn't stop the bike, leaving her bouncing around complaining and a large horde of shocked and happy neighborhood men looking on.
* SeashellBra: There is an episode in which Yamagata imagines Machiko as a mermaid with the obligatory seashell bikini.
* SexySilhouette: Machiko in some shower and bath scenes. Almost inevitably, peepers (and the viewers) will see more than just her silhouette.
* SexyStewardess: Machiko in episode 31, for the joy of male students and co-worker, with MaleGaze and PantyShot included.
* SexyWalk:
** Machiko sometimes does this unintentionally.
** In a BaitAndSwitch moment, the Vice-Principal is introduced this way.
* ShowerScene: Machiko is frequently shown in the shower… including in the opening and closing credits! And as was common for this era[[labelnote:*]] (an example is Shizuka from the 1979-2005 era of ''Manga/{{Doraemon}}, although given Shizuka's very young age, her scenes were almost certainly ''not'' intended for titillation)[[/labelnote]], there's absolutely no CensorSteam.
* SkinnyDipping: Inadvertent example in the opening credits where Kenta and Kame use fishing lines to remove Machiko's bikini while she swims past them. She comes out of the pool, realizes she's naked, and does her OnceAnEpisode pose.
* SlipperySwimsuit: If Machiko is wearing a swimsuit, the chance that it'll stay on her is nearly zero.
* SquirrelsInMyPants: Happen in few episodes, usually with little fish. The trope is always used as excuse to force Machiko to stripping herself. Episode 84 has also a little eel jump from Machiko's dress to her female students, so the fanservice is doubled.
* TeensAreShort: At one point in the anime, at least according to the official translation, the students are stated to be middle schoolers, but they're so small they look about eight – all the adults except [[MiniatureSeniorCitizens the principal]] and Yamagata tower over them. Most likely they're in 7th grade (ages 12-13) which explains the uniforms[[labelnote:*]] (Japanese elementary schools generally do not have uniforms, but pretty much all middle and high schools do – Arama Academy's uniform style is very reminiscent of what one would have seen in a middle school in the postwar era)[[/labelnote]] and the fact that the girls have started developing.
* ThanksForTheMammary: Machiko gets groped by almost everyone, including animals. Kenta is the major offender; for him it's basically his version of "Hello!".
* ThemeTuneCameo
** In episode 3, Machiko sing the opening theme when she is designate to replace an idol in a concert.
** In episode 14, Machiko and her class sing the show's ending theme to pass the time on a bus trip.
* VaporWear: Her bra was stolen by a crow once, and her shirt was... [[NippleAndDimed different]].
* WackyHomeroom: The series had a very colorful homeroom and the quirkiness branched off into other teachers and members of the faculty as well.
* WardrobeMalfunction: Machiko is often victim of this in alternative to ClothingDamage (in every case she will lose her dress).
* WhyDidItHaveToBeSnakes: Machiko is afraid of cats.
** Episode 57 has a martial artist that fears women with big boobs. And not just Machiko; even her female students (while they jump with "bounce" effect) cause him to faint.
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