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Miss! What's your address and phone number?
Voiced by: Toshio Furukawa (JP), Steve Rassin (EN, Movies 1, 3-6), Michael Sinterniklaas (EN), Wayne Grayson (EN, Movie 2)The main protagonist of the series. A lazy student at Tomobiki High School, Class 2-4, Ataru suffers from an incredible amount of bad luck, having been born on Friday the Thirteenth during a major earthquake… which also happened to be Butsumetsu, the unluckiest day of the Buddhist calendar. Thanks to this lack of good fortune, his triumph in the game of tag that saved Earth from Oni invasion turned into a defeat for him. His victory statement, intended to confirm his then-girlfriend Shinobu's promise to marry him if he won, was misinterpreted by Lum to be a marriage proposal to her. Much to his chagrin, she accepted.
- Abhorrent Admirer: To nearly all the supporting female characters and every pretty girl he sees. He literally throws himself at the girls he likes and always gets beaten up as a result.
- Accidental Marriage: With Lum since the first episode. Ataru had been promised marriage by Shinobu if he could win the challenge, so upon catching Lum he declared "Now I can get married!".
- Accidental Proposal: He ended up engaged to Lum because after he defeated her in the game of tag she misinterpreted his statement "Now I can get married (to Shinobu)!" to be a marriage proposal for her.
- Adorkable: He fits the trope despite being a Jerkass and a pervert. He's basically a scrawny, dorky, perpetually hapless loser who still manages to attract a very beautiful alien like Lum (among others) who loves him despite his many human flaws.
- Affectionate Nickname: Lum calls him "Darling".
- Barehanded Blade Block: Ataru is a master of this, usually against Mendou.
- Beady-Eyed Loser: The unluckiest and most perverted man in the universe. And also the most beady-eyed.
- Belated Love Epiphany: He has one every time Lum apparently leaves him and he starts missing her badly. He returns to denial once she comes back, though.
- Big Eater: When he's not chasing girls, his sole other interest is in food.
- Blessed with Suck: His Accidental Marriage to a beautiful alien princess who genuinely loves him and sees his better qualities… who is a Tsundere Clingy Jealous Girl, a Lethal Chef, and will electrocute him every time he chases another girl.
- Book and Switch: He is shown hiding a girly mag inside one of his books.
- Book Dumb: He’s often shown to be a slacker and an underachiever with his schoolwork, but can be quite crafty when it comes to his schemes.
- Born Unlucky: His birthday is even April 13th† , and the litany of bad luck omens associated with him appeared before he was even born. Not to mention his Meaningful Name (roughly translated, "hit on the head with a falling star").
- Butt Monkey: Is he ever. This guy never catches a break.
- Cannot Spit It Out: Ataru can't admit he really loves Lum because, if he did, he'd have to give up his dreams of a harem. Though in the fifth movie when Lum threatens to erase the memory of her from everyone on Earth, he won't say it because if he said it now it would be a Cassandra Truth.
- Can't Act Perverted Toward a Love Interest: Lum is the only female in the universe he doesn't harass. Ironically, she is also the only female who'd be happy to get his attentions.
- Can't Live With Them, Can't Live Without Them: This defines perfectly how he feels about Lum. Ataru constantly chases all girls other than Lum. Yet whenever Lum disappears from his life, he'll instantly drop his perverted maneuvers and go to great lengths to get her back. That doesn't stop him from immediately resuming his lecherous ways the moment she's safely back.
- Casanova Wannabe: He is always ready to ask a random girl off the street for her address and phone number. This despite having an alien beauty (who has electric powers and is deathly jealous, to boot - just do the math) for a fiancée. His main trait, though, is Cosmic Plaything considering how much he pays for this.
- Childhood Friend Romance: With Shinobu during early chapters… until she dumps him over his inability to get rid of Lum.
- Class Representative: Gets elected class president as a Dork Horse Candidate. He's so ineffective that later on, everyone had forgotten it.
- Commitment Issues: He does love Lum, but he hates the idea of settling down with only one girl.
- Cosmic Plaything: He was born on the second unluckiest day in the Japanese calendar: The thirteenth of April – the fourth month of the year, as well as the day remembering the death of Buddha. His name means "hit by a shooting star", which would take phenomenally bad luck.
- Crazy Jealous Guy: He won't admit it, even to himself, but he does not like seeing Lum with other guys.
- Crouching Moron, Hidden Badass: He can stop Air Jousting Benten and Ryuunosuke in one move using bathing implements, in midair. He can also run 100m in 7 seconds as long as there's a girl involved.
- Deadpan Snarker: Often tends to make snide remarks at other characters, especially Mendou or Ten.
- Determinator: Ataru Moroboshi is a rather luckless, perverted version of this trope. Heaven help anyone between him and a beautiful girl, or the girl herself if she tries to use him to get at Lum and then underestimate how far he'll go for a kiss or grope. Nothing will stop him – common sense, decency, the law, fate, the gods, beatings, near-electrocutions, explosions, military-grade weaponry, armies, you name it. Even evil spirits are scared of him. He demonstrates a tenacity that makes his "friends" wonder if he's even human.
- Dork Horse Candidate: In Shuutaro Mendou's introductory episode/chapter, Mendou runs for class president on the platform of draconian punishments for misbehavior… except not for the girls (this is all it takes to win the vote of every girl in class). Ataru is pressed into running against him by the boys, leading to a tied vote. To resolve that, they duel and Ataru wins, making Mendou the vice president.
- Dude, Where's My Respect?: He saved the world in the first episode, and Shinobu had promised to marry him in reward. Not only he's treated as a nuisance even by his parents, but Shinobu went back on her promise.note
- Everyone Has Standards: In Movie 1, he rejects Elle for being a Harem Seeker who collects handsome young men and keeps them in carbon freeze. But mainly for being much more of a maneater than he is a womanizer.
- Frying Pan of Doom: His weapon of choice against Jariten.
- Harem Seeker: His stated goal in life. Ultimately Subverted, as he'll gladly give it up if Lum isn't in it. He proved this twice, first in the second movie, when he agreed to let Mujaki keep Lum dreaming with everyone sealed inside in exchange for being placed in a dream of having a harem… only to declare it worthless when he noticed Lum wasn't there, and destroying Mujaki's machination when he refused to put Lum in it (to not soil her purity) and then tried to seal him in multiple dreams where he wasn't with Lum, and then again in the "Inaba the Dream-Maker" story, where he managed to hack fate to give himself his ideal future where he had his harem, only to personally destroy it when he learned Lum had left him.
- Hidden Heart of Gold: He's often mean to Lum, but deep down he cares for her.
- Hormone-Addled Teenager: Played straight to an insanely ridiculous extent. Most teenagers in the series are like this too, but not as shameless as Ataru.
- Idiot Hero: A very obvious example of the typical lazy idiotic Japanese protagonist.
- Interspecies Romance: With Lum.
- Iron Buttmonkey: It's even lampshaded in one book, where he gets a broken arm, and everyone is in disbelief.
- Jerkass Has a Point: He may be a Jerkass but has every right to be annoyed by Lum. She's the one who assumed Ataru wanted to marry her (when all he said was "Now I can get married"), and basically intruded on every aspect of his life since then, acting like a possessive Clingy Jealous Girl.
- Jerk with a Heart of Gold: Ataru is lecherous, lazy, selfish, and stubborn, but he has deeply buried noble qualities that most people, including himself, can't see.
- Kavorka Man: He's considered by most girls to be the most unattractive boy in Tomibiki – lecherous, obnoxious, selfish, and a Jerkass to boot… but Lum is a beautiful and attractive alien princess who loves him and would do anything for him, and before that he had managed to snag Shinobu – considered well-above-average in looks – as his girlfriend. In the first movie another beautiful Alien princess is in love with him. And there's also a ghost girl (Nozomi) and Tsuyuko (a girl cursed by a rain god), who seem to genuinely fall for Ataru during the series. Neither stick around long enough to find out what a sleazy lecher he is though as they both get Put on a Bus.
- Loser Protagonist: Mainly because of his lechery and other human faults. He was born on the most unlucky day of the year in Japan. His own parents often have no shame in saying how much they wish he wasn't born. He's unpopular with most of the boys and almost all the girls at his high school. Even when the beautiful female alien, Lum, comes into his life, he's still unlucky because of all the baggage she brings with her.
- Lovable Sex Maniac: In the 10th anniversary movie Always My Darling, Princess Lupika's computer pinpoints him as the most lecherous man in the universe.
- Love You and Everybody: Of course he loves Lum… and Shinobu, and Sakura, and Ran, and Ryunnosuke, and Benten, and Oyuki, and Ryoko…
- Meaningful Name: Ataru means "to get hit" and Moroboshi means "falling star". A metaphor for his cosmically miserable luck.
- Noble Male, Roguish Male: The roguish to Mendou's noble. However, it's subverted to an extent since deep down Mendou is just as roguish as Ataru.
- No Guy Wants to Be Chased: He rejects Lum because of her aggressive pursuit of him and her Clingy Jealous Girl personality.
- No Sense of Personal Space: He does it on purpose when he's flirting, and really enjoys it, even though he will always receive a violent punishment for it a second later.
- Red Oni, Blue Oni: The red to Mendou's blue.
- Significant Birth Date: He was born on April 13th, the second-unluckiest day of the year in the Japanese calendar, and in the year he was born was also the anniversary of the Buddha's death.
- Smarter Than You Look: He’s frequently referred to as stupid and considered the village idiot by nearly everyone (including his own parents and sometimes Lum herself). But despite his usual foolish behavior, he is actually able to be cunning/resourceful, and outwit other people in various situations.
- Unlucky Everydude: He falls behind in the "Everydude" part, though, seeing as how he's a Determinator and Loveable Sex Maniac of such intense perversion he's outright stated to be the most concentrated source of lust in the known universe. He comes off as average because everyone else he hangs out with is even more bizarre...
- Unsympathetic Comedy Protagonist: As a bit of the rest of the cast.
- Vitriolic Best Buds: With Mendou.
- Weirdness Magnet: The name of the series itself can be translated as "Those Annoying Aliens", suggesting that the galaxy and series' version of Earth is teeming with sentient species who are all irritating in their own ways. Ataru is therefore simply unlucky enough to catch the attention of all of them.
- Will They or Won't They?: With Lum. We never directly find out.
- Wouldn't Hit a Girl: At least, he wouldn’t beat up a girl and, as seen in one of his rare Pet the Dog moments, he would even physically hurt himself rather than hurt Lum.
Darling no BAKA!!
Voiced by: Fumi Hirano (JP), Shannon Settlemyre (EN, Movies 1,3-6), Martha Ellen Senseney (EN), Roxanne Beck (EN, Movie 2), Larissa Murray ("Lum the Invader Girl" dub)The female protagonist of the series. She is a beautiful Oni alien who is capable of flying and generating electrical shocks and even lightning. She falls in love with Ataru after his "marriage proposal". While generally good-natured, sweet, faithful, and innocent, Lum is very jealous and has a very hot temper.
- Arranged Marriage: With Rupa.
- Bare Your Midriff: Obviously whose Iconic Outfit is a tiger-print bikini.
- Betty and Veronica: The Veronica to Shinobu's Betty during early chapters.
- Beware the Nice Ones: She's quite sweet-natured, but that doesn't stop her from (non-fatally) electricuting Ataru whenever he does anything perverted - which is nearly all the time.
- Big Sister Instinct: Lum is very protective of Ten, especially when Ataru picks on him, but she also scolds him sometimes when he’s being too much of a brat.
- Birds of a Feather: It's subtly hinted that part of the reason why Lum is attracted to Ataru (the other part being that she can recognize his deeply buried noble qualities) is because they're much the same; Lum is also sneaky, mischievous, bad-tempered and uninhibited.
- Breakout Character: She was supposed to be a One-Shot Character, but fans (and Takahashi's editor) loved her so she returned in the third chapter and became a Deuteragonist, love interest, and poster girl for the series. She is often believed to be the main character due to this. To this day she remains one of the most recognizable comic characters ever created.
- Can't Hold Her Liquor: She actually can. However, thanks to Bizarre Alien Biology, she once got famously smashed from eating umeboshi (pickled plums).
- Characterization Marches On: Early chapters of the manga portrayed her as a clear-cut antagonist, if not an outright villain. Needless to say, her characterization wildly changed before the manga was even a single year old, making her the short-tempered yet more likeable character we are familiar with. This very likely has something to do with the fact that Lum wasn't originally meant to be the main heroine, but an obstacle for Ataru's relationship with Shinobu, but Lum's popularity forced Rumiko Takahashi to change the Official Couple.
- Childhood Friends: With Benten, Oyuki, and Ran.
- Clingy Jealous Girl: She is very possessive of Ataru and usually zaps him with lightning as a punishment for his "infidelity".note
- Closet Sublet: The Trope Codifier. She lives in Ataru's closet (possibly a pun on the Japanese slang for Pretty Freeloader).
- Cool Big Sis: To Jariten.
- Crazy-Prepared: Lum nearly always carries around some kind of weird alien device is useful to the situation at hand (and usually it makes the trouble one hundred times worse).
- Cute Little Fangs: She has fangs on the top of her mouth.
- Cute Monster Girl: Lum looks like a cute teenage girl with green hair and little horns, but is explained as being an alien whose race is the inspiration for Japanese ogres. Her being such is actually lifted straight from Japanese mythology, where Oni women are supernaturally beautiful but capable of assuming fearsome visages when angry or jealous.
- Defeat by Modesty: How Ataru defeated her in the tag game. He stole her bikini top and this made Lum let her guard down long enough for him to catch her horns.
- Deuteragonist: The female lead character and love interest of The Hero.
- Double Standard: Abuse, Female on Male: Lum uses her electricity to shock Ataru five times a day.
- Dude Magnet: Many of the male characters love her and therefore are jealous of Ataru.
- Everything's Better with Princesses: It's not mentioned often, but she is an alien princess.
- Fur Bikini: She wears a tiger-striped bikini (based on the tiger-striped loincloths of mythical oni, which were made out of man's bad karma). It is her Iconic Outfit.
- Genki Girl: She has a feisty and cheerful personality.
- The Glomp: To Ataru. Usually accompanied by a painful electric shock.
- Hair Decorations: Early on, Ataru forces Cherry to give him a set of yellow ribbons that, if tied around Lum's horns, make her lose her powers. In an early Manga episode, Lum decides to try visiting Ataru's class looking like a normal human girl. Part of her disguise was to use a liquid that softened her horns so they could be flattened to look like ornaments.
- Horned Humanoid: Being an Oni, she has two small horns.
- Human Alien: Lum and her family look almost exactly like humans, only with two small horns and green hair.
- Instant Fanclub: Lum's Stormtroopers.
- Interspecies Romance: With Ataru.
- Japanese Pronouns: She uses "uchi" to refer herself instead of "watashi" or "atashi".
- Jerk with a Heart of Gold: Lum is clingy, possessive, controlling, and can get violent when she’s angry. But she’s also sweet and loving towards the people she cares about.
- Kaleidoscope Hair: In the manga. Changed in the anime to its iconic green because iridescence was next to impossible to animate in 1981 (and is still extremely difficult today).
- Kiss-Kiss-Slap: She's very affectionate to her 'Darling', but doesn't hesitate to zap him with lightning whenever he hits on another girl, which happens a lot.
- Lethal Chef: There's nothing technically wrong with her cooking, it's just that she tends to overuse the spices to make it taste like the food on her home planet (and by alien standards, she's actually a Supreme Chef). She comments that Earth-food is completely flavorless and enjoys drinking Tabasco sauce straight out of the bottle.
- Love Martyr: Ataru is lecherous, obnoxious, selfish, and a Jerkass to boot, but Lum still loves him and would do anything for him despite how he's often rude to her and would have no problem groping/flirting with other women, even in front of her.
- Love Revelation Epiphany: She fell in love with Ataru after she misunderstood something he said to himself as a marriage proposal to her.
- Magical Girlfriend: A famous parody. Ataru is an Unlucky Everydude whose life gets turned around when the beautiful alien princess Lum falls in love with him. Ataru is also a slovenly, pitifully-desperate pervert who likely deserves all the trouble he goes through, and Lum is a Tsundere who loves him despite his lechery but isn't averse to zapping him with her electrical powers when he strays. She's also somewhat bumbling, usually causing more problems then she solves. Add to this that when she showed up, he already had a girlfriend he liked better.
- Monster Roommate: Zigzagged. Depending on the chapter, she switches from living in Ataru's closet to staying in her spaceship.
- Mood-Swinger: Lum is a very sweet, innocent, faithful, and good-natured girl, but she can also be jealous and has a very hot temper.
- Ms. Fanservice: Are there any Fanservice tropes not related to Lum?
- No Accounting for Taste: No one can figure out why such a beautiful girl as Lum is in love with a lecherous loser like Ataru.
- No Sense of Personal Space: Towards Ataru early in the series, but downplayed after Character Development.
- Parental Substitute: To Ten. In a way his cousin Lum is the only consistent mother figure he has ever had in his life. She's his legal guardian and takes care of him almost as if he was her child.
- Pretty Freeloader: She stays for free at Ataru's house.
- Self-Proclaimed Love Interest: She has considered Ataru her husband ever since she thought he proposed to her.
- Shock and Awe: Lum (and her mom) can generate electricity, both shocking whoever they touch and launching lightning bolts from their fingers. Lum routinely uses this to punish Ataru Moroboshi for angering her, but she can't entirely control it, resulting in the obvious implication that Ataru's hesitance to get near her is partially due to her tendency to shock him accidentally when she hugs him or tries to sleep in his bed.
- Single-Target Sexuality: While she has a ex-boyfriend, Lum never shows interest in anyone but "Darling" throughout the series.
- Strong Family Resemblance: To her mother.
- Town Girls: The Neither to Oyuki's Femme and Benten's Butch.
- Tsundere: Type B. She's very sweet and affective, but Ataru chasing other girls brings out her hot-tempered and possessive side.
- The Ugly Guy's Hot Daughter: The huge, monstrous king of the alien Oni looks nothing like his green-haired bombshell of a daughter, Lum, who definitely takes after her mother.
- Unwanted Spouse: To Ataru.
- Verbal Tic: "-datcha" (or "-tcha") at the end of almost every sentence.
- Victoria's Secret Compartment: She occasionally pulls some Oni-tech gizmo from her bikini top.
- Well, Excuse Me, Princess!: The Trope Codifier. While Lum actually doesn't really mind Ataru being a pervert, she would like him to do better with his life instead of just being a lecherous loser. She would also much rather Ataru act like that toward her rather than every girl except her.
- What Does She See in Him?: No one seems to understand why Lum is in love with Ataru, particularly her many admirers. For the record, Ataru has no idea either.
- Will They or Won't They?: With Ataru.
- You Gotta Have Blue Hair: She has long green hair. Or iridescent in the manga.
MEN BE DAMNED!!!
Voiced by: Saeko Shimazu (JP), Danielle Sullivan (EN, Movie 1,3-6), Katherine Burten (EN, Movie 2)Ataru's childhood friend and classmate. Until Lum showed up she was also Ataru’s girlfriend. As encouragement for Ataru during the tag game, she promised him that if he won she would marry him. This did indeed spur him to victory, but it also resulted in his victory cry that led to Lum deciding to stay and claim Ataru instead.Shinobu is a neat, sweet, petite young lady of above-average physical attractiveness. Despite these very feminine characteristics, however, she has an extremely short temper and often displays superhuman strength – she's one of the strongest characters in the series, able to easily throw classroom desks or any other large/heavy object/structure on-hand as needed.
- Betty and Veronica: The Betty to Lum's Veronica. She serves as the down-to-earth childhood friend to Ataru, in contrast to the exotic and sexy alien Lum. However, Shinobu soon stops competing with Lum as she loses interest in Ataru.
- Beware the Nice Ones: Shinobu usually acts like a cute, fragile teenager girl who doesn't fear to say what is in her mind. However, when her temper is pushed too far, she gets violently mad, having able to lift school desks and then throw them to others, usually Ataru.
- Charles Atlas Superpower: Her super-strength evolved from sight gag to full-fledged super-power.
- Childhood Friend Romance: With Ataru during early chapters.
- Clingy Jealous Girl: Early chapters have her constantly fighting with Lum over Ataru, as well as punishing him for always chasing after other girls.
- Cute Bruiser: She is a cute girl, but also strong to super-human level.
- Demoted to Extra: She is not as prominent as she was in early chapters, due to Lum becoming the Breakout Character and replacing Shinobu as the female protagonist.
- Engagement Challenge: She used this to encourage Ataru during the game of tag, but it lead to Ataru's Accidental Marriage with Lum.
- Fatal Attractor: The only guys who have any interest in her are creeps and weirdos. Fortunately, she meets Inaba near the end of the series.
- Girl Next Door: Ataru's pretty but down-to-earth childhood friend.
- Hair-Trigger Temper: She has a tendency to get angry and over-react to the littlest things.
- Hopeless Suitor: Toward Mendou. She still gets disappointed by him as well, since everyone she actually likes seems to like Lum even more.
- I Can Change My Beloved: Early in the story, it was obvious Shinobu really cared about Ataru, and unlike Love Martyr Lum, she actually wanted him to change his obnoxious ways and become a better person. This obviously never happens and Shinobu gradually loses interest in him.
- Looking for Love in All the Wrong Places: She certainly has bad luck with men.
- Meaningful Name: Shinobu means "to endure" and she truly has endured a lot.
- Megaton Punch: A specialty of hers, particularly towards Ataru and Soban.
- Official Couple: With Inaba at the end.
- Only Sane Woman: When not being angry, she is one of the most normal characters, at least compared to the rest of the cast.
- Single Girl Seeks Most Popular Guy: Her crush on Mendou is this, but inverted with her former boyfriend Ataru, who is far from being "the popular guy".
- Single Woman Seeks Good Man: Ends up with Inaba, who is probably the only truly nice character in the series.
- Throw the Dog a Bone: After having such a terrible luck with men throughout the series, she found a really Nice Guy to be her boyfriend.
- Tsundere: Type B. Like Lum, she's normally nice and sweet, but she's also short-tempered and violent.
- Waif-Fu: Juggles desks easily.
- Yamato Nadeshiko: Considers herself to be a responsible and lady-like japanese girl; only problem is her temper.
"Waaaah! It's dark! It's cramped! I'm scared!!!"
Voiced by: Akira Kamiya (JP), Robert Rogan (EN, Movie 1,3-6), Wayne Grayson (EN, Movie 2), Brian Hudson (EN, TV)Heir to the Mendou Conglomerate with staggering wealth and its own private army. He commutes to school in a gigantic helicopter that is more like a flying mansion. A descendant of a samurai family, Shutaro often carries a katana with him, which at any moment could be flying at Ataru's face, who has become adept at blocking it with his bare hands. Although very handsome and intelligent, he is truly just as foolish and lecherous as Ataru, just much more sophisticated in his approach.
- Animal Motifs: Mendou family crest is the octopus, and Mendou himself keeps several as pets. Furthermore, he is offended if people eat takoyaki in his presence.
- Arranged Marriage: With Asuka.
- Bishōnen: The greatest difference from Ataru.
- Broken Ace: Introduced as The Ace (and his clueless fangirls still see him as such), but it's very obvious he's anything but. He frequently makes a fool of himself, especially when he's being too vain or Holier Than Thou, and Ataru is able to use Mendou's claustrophobia against him.
- Butt Monkey: His claustrophobia and fear of the dark put him in embarrassing situations as a Running Gag.
- Charles Atlas Superpower: He apparently developed it while trying to escape from all the bells Ataru closed him into.
- The Charmer: In contrast to Ataru, he knows how to approach a woman, thanks to his suave and sophisticated manners.
- Chick Magnet: In the school he is very popular with the girls, except with Lum much to his dismay.
- Claustrophobia: Except anytime a hot girl's looking at him - his ego is stronger than his fear.
- Custom Uniform: He wears a different uniform just to show off how rich he is.
- Foil: To Ataru. Ataru comes across as a moronic, lecherous, selfish jerk but he has more Hidden Depths and Hidden Heart of Gold than you can think, while Mendou seems a handsome, suave, smart gentleman, but as pointed above, he's actually just as petty, foolish and lecherous as Ataru (he just hides it better).
- Gentleman and a Scholar: Downplayed. Mendou is responsible, one of the best students in the class, and acts polite and well-mannered to girls, but he's too much of a stuck-up Spoiled Brat to qualify.
- Handsome Lech: Mendou is the same as Ataru, except he's rich, handsome and suave.
- Inferiority Superiority Complex: Anytime he finds himself second best at something he feels he should be best at, he tends to collapse - The time Rei turned up and was better looking then him (Mendo's response after coming out of shock "Money is more important than looks!!"), and all the times Ryuunosuke winds up getting a bigger pile of fan mail then him.
- Instant Fanclub: His army of fangirls.
- Jerkass Has a Point: The most malicious thing he ever does in-series, taking advantage of Lum's amnesia and claiming she is his fiance (thus taking advantage of a woman to a degree that not even Ataru would ever do), he does out of disgust towards Ataru's apathy concerning Lum's disappearance. Even then, it takes Lum's Stormtroopers to convince Ataru to get his head in the game.
- Katanas Are Just Better: Subverted. On said occasions, Mendou draws his katana (in the anime it is called Murasame) and attempts to slice Ataru in two, but he never succeeds.
- Ladykiller in Love: Maybe for Asuka. His relationship with Lum also has this vibe.
- Last Name Basis: Everyone calls him Mendou.
- Lord Error-Prone: He's incredibly wealthy, carries a sword everywhere he goes, and generally acts the cool sophisticate, an act for which the local girls fawn over him in adoration. Scratch the gloss, however, and he's really no better than Loveable Sex Maniac Ataru Moroboshi himself. In fact, he's debateably worse, given that he's utterly afraid of the dark, claustrophobic, and a Dirty Coward, while Ataru is capable of insane acts of bravery and determination.
- Meaningful Name: Mendou means "trouble".
- Noble Male, Roguish Male: He acts as the noble to Ataru's roguish. However, deep down Mendou is just as roguish as Ataru.
- Not So Different: Take away his power and sophisticated manners, Mendo is the same as Ataru.
- Perfectly Arranged Marriage: After seeing how she really looks like under her armor, Mendou becomes very motivated to marry his arranged fiancee Asuka. Asuka, on the other hand, comes to accept him after she finds out he's a "big brother" like Tobimaro.
- Red Oni, Blue Oni: The blue to Ataru's red.
- The Rival: To Ataru.
- Royal Brat: Mendo is first introduced to the series proper by hitching a ride to school... in a massive heavy bomber jetplane, out of which he skydives while several jets/helicopters fly in escort.
- Screw the Rules, I Have Money!
- Sheltered Aristocrat: He's the pompous and mean-spirited buffoon kind .
- Spoiled Brat: Mendo might border on being a Royal Brat, due to the fact his family is insanely wealthy (among other things, they have their own private army and own a considerable chunk of Japan).
- Took a Level in Jerkass: In a 2-parter story where Lum's UFO crashes on the Mendou estate, causing her to lose her memory. Shutaro takes advantage of this by claiming her as his fiance and then isolating her from outside contact. When Lum's Stormtroopers get ready to launch a rescue mission, Megane even leaves behind his will as he does not expect to survive, and he's right as the Mendou private army is sent out to kill them!
- Vitriolic Best Buds: With Ataru.
- Why Did It Have to Be Snakes?: Due to a time-travel incident intended to actually fix his fears, he has horrible nictophobia and claustrophobia.
Tomobiki High School
Voiced by: Tomomichi Nishimura (JP), Jeremy Griffin (Movie 4), Draidyl Roberts (Movie 2)The principal of Tomobiki High School. A soft-spoken, balding, nearsighted middle-aged man, he treats all of the weird goings-on at the school as harmless student shenanigans.
- Cloudcuckoolander: The principal has a very slow and proper way of talking and he has a tendency to spew out boring speeches about school spirit that never seem to go anywhere.
- No Name Given: He is just "The Principal".
- Odd Friendship: He is accompanied by the ghost cat Kotatsu-neko on almost every occasion.
- The Stoic: He's a very calm old man who rarely acts in anger and always keeps a straight face.
- Skewed Priorities: You'd think he should become irate over the constant alien invasions, destruction, parties, chases and such, but it doesn't really phase him at all. But be seen running in the halls and you'll be holding buckets of water in the hall.
- Unfazed Everyman: All of the truly insane things that happen in the school every day don't seem to have any affect on him.
Voiced by: Michihiro Ikemizu (JP), Bradley Evans (EN, Movies 3-6), Sean Barret (EN, BBC dub), T. Roy Barnes (EN, Movie 2).The English teacher of the Class 2-4, "Classroom of Failure". Originally contracted by the Principal of Tomobiki via the "Trump-Card Teachers" Organization. A sad, middle-aged man, whose only interest is to teach at Tomobiki High, but he fails due to the constant interruptions during class, when the classroom itself is not destroyed by Lum, Ten or Shinobu.
- Adapted Out: At one point in the manga, he refers to having a wife and kid at home, they're never mentioned again, and don't exist in the manga where he has a hopeless crush on Sakura. Though its possible he was lying?
- Authority in Name Only: No one respects him, and is often abused or beaten up by Ataru or other students.
- Big Ol' Eyebrows
- The Chew Toy: Bad things tend to happen to him.
- Hot for Student: Its occasionally speculated in the series that he shows in the girls in his class. Most notably when he is teaching Ryuunosuke to be a proper lady. Also he has a soft spot for Lum in the anime, though thankfully has never pursued her.
- Hopeless Suitor: To Sakura in the anime, unfortunately for him she is already in a relationship with Tsubame. His dream wife in Beautiful Dreamer even resembles her.
- Only Known by Their Nickname: His real name is never revealed, with everyone (including the principal) calling him Onsen-Mark after his clothes, decorated with an hot spring mark. Maybe it really is his name?
- Only Six Faces: Resembles a smaller version of Lum's father without the fangs.
- Not So Above It All: In the anime, he's shown to have a soft spot for Lum like the other guys, though not to a full on Hot for Student extent.
- Stern Teacher: Especially to Ataru, since they see each other as archenemies.
- Villain Decay: Was a rather menacing Sadist Teacher in his debut, while later episodes made him more of a pathetic chewtoy with an underpaid job.
Voiced by: Mayumi Tanaka (JP), Morgan Jarrett (EN)A classmate of Ataru. She is a girl, but her eccentric father has raised her as a boy. Her greatest desire is to behave appropriately for her gender.
- Action Girl: She is a martial arts-style excellent fighter.
- Arranged Marriage: With Nagisa.
- Berserk Button: She does not like when people mistake her for a boy or treat her like a boy.
- Bifauxnen: So much that even girls who are aware of her gender swoon.
- Bokukko: "Ore wa onna da zo!" ("I'm a woman!") Lampshaded and made more ridiculous by the resident Ataru and Mendo trying to teach her to talk like a girl and showing themselves really proficient at it.
- Boyish Short Hair
- Calling the Old Man Out: Several times a day.
- Catch Phrase: "I'm a chick, dammit!!!"
- Custom Uniform: Ryuunousuke wears the standard boy's outfit... at her father's insistence (the latter being In Denial about not having a proper son).
- Does Not Like Men: She hates being touched by men and repeatedly denied them, and even the idea of being with one disgusts her.
- Even the Girls Want Her: Yes, the female population of the school is aware that she's female and forced into Bifauxnen status by her father. They don't care — she's still hot. Subverted with Kagura and Ran that mistake her for a boy.
- Hilariously Abusive Childhood: Her Father raising her as a boy is Played for Laughs mostly.
- Hot-Blooded: Has a brutish temper and is prone to fighting.
- Masculine Girl, Feminine Boy: Masculine Girl to Nagisa's Feminine Boy.
- Naïve Newcomer: She tends to be a bit clueless about things, but it's justified due to her warper upbringing.
- Raised as the Opposite Gender: Ryuunosuke's dad wanted a boy to carry on his family sea-side shop and decided to raise his only daughter as one. Ryuunosuke knows she's really a girl and wants to be more girly, but fails due to her father's meddling.
- Sarashi: Wears one not only to demonstrate her tough, combative nature but also as a substitute for the bra her father wouldn't let her wear.
- She Cleans Up Nicely: In an episode where she wears the same dress as seen in My Fair Lady.
- Tomboyish Name: As a rule, -suke is masculine, it's almost like -son (Jacobson, etc) in English. This is due to the fact her father is one of the most extreme examples of 'wanted a boy' in fiction - he forces her to act, talk, dress and pretend to be a boy when she wants to be feminine but can't manage it because of her upbringing.
- Tomboy with a Girly Streak: She really wants to be more feminine, but her father won't let her.
- Whole Costume Reference: The same dress in My Fair Lady, seen here◊.
- Wholesome Crossdresser
- Wouldn't Hit a Girl: She reveres girls so much that she'd never hit a girl.
Voiced by: Kappei YamaguchiAtaru's classmate and best friend.
The Lum Stormtroopers: Megane, Perm, Chibi and Kakugari
Megane is voiced by: Shigeru Chiba (JP), Marc Garber (EN), Colin Hackman, Craig Wollman (EN, Movies)
Perm is voiced by: Akira Murayama (JP), Adrian Monte (EN), Jonathon Guggenheim
Chibi is voiced by: Issei Futamata (JP), Steven Paul (EN)
Kakugari is voiced by: Shinji Nomura (JP), Langley McArol (EN)Four schoolboys from the same class as Ataru who are in love with Lum and have sworn to protect her from Ataru.
- Ascended Extra: They only show up in the first few chapters of the manga then disappear, but in the anime the four are regulars, especially Megane.
- Ax-Crazy: Megane in some episodes.
- Butt Monkey: Chibi is a short, timid crybaby who is often beaten up by the rest of the Gang.
- Composite Character: In the anime, Perm and Megane take most of the roles Kousuke had in the manga. It helps that Perm actually looks similar to Kousuke.
- Fanboys: Lum's Fan Club, as they are all obsessed with her.
- Hopeless Suitor: Megane (and, to a lesser extent, the others), to Lum.
- Hot-Blooded: Megane. In on one memorable scene from episode 64, he runs up the wall, breaks through the ceiling, and stands on the roof shouting into a megaphone.
- Large Ham: Megane is often very loud and hammy.
- Megane: Megane, as his name suggests.
- Only Known by Their Nickname: The names they are known with refers to some physical characteristic of them, and means glasses (Megane), permanent (Perm?), tiny (Chibi) and crew cut (Kakugari). That said, Megane's, Chibi's and Kakugari's real names are actually known (Satoshi, Akira and Hiroyuki respectively), with only Perm's being unknown.
- Scary Shiny Glasses: Megane.
- Spotlight-Stealing Squad: Megane is the most focused on the group.
- The Leader: Megane is the leader of the Lum Stormtroopers.
- Otaku: Megane is a charicature of a crazed, obsessed otaku taken to an extreme.
- With Friends Like These...: If they can be called Ataru's "friends". Despite their antagonism towards Ataru, they often hang out with him.
Jariten (a.k.a Ten)
Voiced by: Kazuko Sugiyama (JP) Shannon Settlemyre (EN, Movies 1,3-6), Mindi L. Lyons (EN), Paula Parker (EN, Movie 2)Lum's infant cousin. He has a single horn on his head and can breathe fire.
- Achilles' Heel: Ten is scared of his own mother, who is an firefighter and extremely strict towards pyromaniacs (ironically Ten can breath fire). He seems to be hiding this ability from her so he wouldn't get into trouble with her.
- Bratty Half-Pint: He loves to act high and mighty, and puts on a façade of innocence ("I'm a good boy" is his Catch Phrase), but in reality he mixes a considerable amount of mischievousness with the same lecherous attitudes as Ataru and Mendo. He loves to stir up trouble to keep himself amused, playfully flirts with every girl he sees, and because he's considered an adorable infant, he can usually rely on women to protect him when he gets into more trouble than his ability to fly and breathe fire can handle. And even when they turn against him, Lum always supports him, to the extent she pays it no mind at all when, say, Ten shows up at Ataru's school and starts randomly biting people to soothe his toothache.
- Breath Weapon: His fire breath.
- Catch Phrase: "I'm a good boy!"
- The Chew Toy: Like Ataru, misfortune seems to visit Ten with considerable frequency.
- Deadpan Snarker: Especially snarky towards Ataru.
- Deliberately Cute Child: Whenever he's around girls—or, more noticeably, his mother—Ten tends to be much better in his behavior.
- Dirty Kid: Despite being a toddler. It's played straight more in the manga than in the anime.
- Disappeared Dad: Ten's dad was never mentioned.
- Friend to All Living Things: While he can be a brat, Ten has a soft spot for animals.
- Kansai Regional Accent: He occasionally displays features of Kansai-ben.
- Kid-anova: Flirts with every girl he sees. Howewer Ten is still essentially a child and quite naive; around women he is usually cute and diminutive.
- Meaningful Name: Jari sort of means "brat". So calling him by his full name Jariten is the same thing as calling him "bratty Ten".
- Not So Different: To Ataru. With all of the constant fighting between them, the truth is that they have a lot in common.
- Precocious Crush: He once had a crush on Sakura as well as the woman who ran the flower shop, Kurama and a few others.
- Spoiled Brat
- Tagalong Kid: Obviously much younger than the rest of the cast.
- Wise Beyond His Years: Or, at the very least, more intelligent than most toddlers tend to be.
Voiced by: Yuuko Mita (JP), Satu Rautaharju & Natasha Malinsky (EN, Movies).An alien girl of Gods of Luck clan and Lum's childhood friend.
- Action Girl: She loves the fight.
- Badass Biker
- Biker Babe: She is the quintessential of this.
- Celibate Heroine: It is unknown by even Lum and Oyuki whether or not she has ever had a boyfriend. However, she's seen supporting Ryuunosuke on her father issues and became excessively flustered when teased that Ryuunosuke might be in love with her.
- Chained by Fashion: She also draps a chain over her shoulder.
- Chainmail Bikini: Benten wears a red skimpy metal bikini, arm protector and boots.
- Childhood Friends: With Lum and Oyuki. They went to elementary school together and Benten is Lum's most loyal friend in the galaxy.
- Fashionable Asymmetry
- Hot-Blooded: She is very strong willed and her mood is usually either laid back or violent.
- Human Alien: She has no diffrence with a human.
- Jerk with a Heart of Gold: Although she can be impulsive, unpredictable, and has a really short fuse, Benten's a really good friend to have.
- The Lad-ette
- Meaningful Name: She is named after Shichifukujin Benzaiten (one of the Seven Lucky Gods), the Shinto goddess of knowledge, art, and beauty.
- Red Oni, Blue Oni: The red to Oyuki's blue.
- Small Girl, Big Gun: She can uses her bazooka, machine gun and explosives to cause massive destruction.
- Stripperific: See Chainmail Bikini.
- Tomboy and Girly Girl: The tomboy to Oyuki's girly girl.
- Town Girls: The Butch to Lum's Neither and Oyuki's Femme.
Voiced by: Noriko Ohara (JP), Jaime Phelps (EN, Movies)Lum's other childhood friend and the Queen of Neptune, which in the series is a frozen, snowy planet populated entirely by women, as most of the men have to go off-planet to find work.
- Absolute Cleavage: For the casual swimsuit type outfit she wears when not sporting a Kimono.
- Beware the Nice Ones: And how! Ran has very good reason to be completely traumatized by the first time she saw Oyuki get angry when they were kids.
- Childhood Friends: With Lum and Benten. They went to elementary school together.
- Deadpan Snarker: She has a great ironic wit, although it's hard to tell when she's joking.
- Elemental Hair: Icy blue hair for the ice woman.
- Emotionless Girl: She never shows strong emotions and remains the picture of demurity under any circumstance.
- Hidden Depths: She's quite possibly the most powerful character in the series.
- The High Queen: The very placid and graceful Queen of Neptune.
- Human Alien
- An Ice Person: Occasionally freezing everything around her in a huge block of ice.
- Meaningful Name: Oyuki means "honourable snow".
- Red Oni, Blue Oni: The blue to Benten's red.
- The Stoic: Oyuki does have emotions like everyone else but her expression never changes much.
- The Tease: In her intro chapter she laments at how, "Things were just getting started," in front of Lum after Ataru got chased away from her.
- Tomboy and Girly Girl: The girly girl to Benten's tomboy.
- Town Girls: The Femme to Lum's Neither and Benten's Butch.
- Tranquil Fury: On the rare occasions where Oyuki gets angry, she doesn't appear to be angry on the surface but be prepared for the ice, wind and snow rage caused by her ice powers.
- Winter Royal Lady: Quite literally.
- Woman in White: Her regular outfit is a white kimono.
- Yamato Nadeshiko: Calm, feminine and graceful, wears a kimono, and is highly cunning and calculative.
- You Gotta Have Blue Hair: Her hair is icy blue.
Voiced by: You Inoue (JP), Kazue Komiya (JP, later OVA's), Morgan Jarrett (EN)Lum's "best" childhood friend. She appears to be a sweet and lovely redhead, but in actuality has a violent, evil side. Her special power is the ability to suck the vitality out of a person’s mouth while kissing them. She can also use this power in reverse. As a child, Ran was often hurt or got into trouble because of the antics of the more carefree and irresponsible Lum. Also, she is in love with Rei who unfortunately still loves Lum. This are the reasons why she hates Lum and wants to revenge against her.
- Becoming the Mask: She desperately tries to do this with her kawaiiko persona, with rather dubious success.
- Bitch in Sheep's Clothing: She appears to be a sweet and lovely redhead, but in actuality has a violent, evil side.
- Butt Monkey: As children, Ran was always being punished for Lum's mistakes and was always getting a jipped indirectly because of Lum. Plus, Rei choose Lum over her. And her plans of revenge always fail.
- Catch Phrase: "Ran-chan is sooo happy!"
- Chainmail Bikini: She is usually seen wearing a skimpy silver bikini.
- Childhood Friends: With Lum more or less.
- Clingy Jealous Girl: She absolutely won't forgive anyone who "steals" Rei away from her.
- Cute and Psycho: She is the poster child for (and likely the inspiration for all other) Cute and Psycho characters. On the outside, she's a cute redheaded girl who likes frilly clothing, baking, and flirting with Ataru. In reality, she's an embittered childhood rival of Lum who is out for some very violent revenge on the girl for well, a lot of things that aren't Lum's fault.
- The Fake Cutie: Don't let her appearance fool you. She's anything but innocent.
- Green-Eyed Monster: Towards Lum that has "stealed" Rei from her.
- Hilariously Abusive Childhood: When she was a child she was usually violently punished by her mother which could have traumatized Ran to develop her split personalities. This is Played for Laughs, of course.
- Hopeless Suitor: For Rei. However, he eventually begins to cling to her, mostly because Ran keeps feeding him.
- Human Alien
- Kiss of Death: Ran has the power to suck the youth from someone by kissing them. She usually tries to use the power on an unsuspecting Ataru, who just thinks she liked him. She can also reverse the process with another kiss.
- Meaningful Name: Ran has two meanings, both of which are suited to her warped personality. One meaning can be taken as "orchid", the other as "civil war".
- Mood-Swinger: The two sides of her personality constantly compete for dominance. Because of that she switches from psycho-bitch to airhead and vice-versa rather suddenly and frequently.
- The Resenter: Towards Lum.
- Rose-Haired Sweetie: Her kawaiiko persona fits the sweet and romantic variety, but she's actually the Bitch in Sheep's Clothing variant.
- Single-Target Sexuality: She's madly in love with Rei and no one else.
- Small Girl, Big Gun
- Supreme Chef: She is a superb cook and is often cooking special dishes for Rei, whom she frequently dates.
- Third-Person Person: "Ran-chan is sooo happy!"
- Through His Stomach: Ran and Rei start dating at one point and Ran prepares a lot of food for him each time, though food is probably the reason why Rei dates her.
- With Friends Like These...: Her "friendship" with Lum.
- Yandere: Ran does anything to keep love between Rei and Lum from triggering again.
Voiced by: Tessho Genda (JP), Jeremy Griffin (EN)Lum's ex-fiance. A very handsome oni, to the point of wooing almost any girl just by them seeing his face. While he is constantly interested in eating, he has a muscular yet slim build, which furthers his good looks. Rei has not yet learned to speak Japanese fully, so he can only speak 1-5 words at a time in Japanese. Lum broke up with him because of his low, simple intelligence and obsession with food. However he followed her to Earth to regain her love. He has the ability to transform into an "ushitora", a huge creature resembling a cross between a tiger and a bull.
- Big Eater: He's a non-stop eating machine who is hardly ever seen not stuffing his face, or looking for eats.
- Bishounen: Rei is a tall, stoic, green-haired space bishōnen who drives men to despair and women to squee.
- Brainless Beauty: He can woo any human woman, regardless of her age, with his beauty, but he's also dumb as a post.
- Chick Magnet: Rei breaks up loving couples just by walking past them, and causes squees whenever anything of the female gender sees him. His being dumb as a plank and loving only food does nothing to dissuade the girls.
- The Ditz: He doesn't seem to have a brain in his head as he is so clueless.
- Flat Character: He has not a personality.
- Hopeless Suitor: Lum can't stand Rei, but he still persues her heart which is quite a pathetic display to see.
- Human Alien: Unless he transforms.
- Language Barrier: Rei doesn't speak much. Whenever he does speak, he is only capable of uttering one word at a time. This is mostly because Rei doesn't know how to speak Japanese. But also because he's just so incredibly, unbelievably stupid.
- Meaningful Name: Rei means "zero".
- The Quiet One: Not very talkative because he doesn't know how to speak Japanese.
- Through His Stomach: He reveres anyone who brings him food... or whatever can even be considered food. He, after, date Ran pretty much only because she keeps feeding him and Rei just learns through conditioning that Ran=food.
- Voluntary Shapeshifting: He can transform himself into a goofy looking, gigantic rampaging tiger-bull monster.
Voiced by: Rihoko Yoshida (JP), Daisy Talley (Dub for public TV and movie 1 dub), Stacey Jefferson (Dub for BBC 3)The "crow princess". A humanoid female from an alien race of crow tengu, she is destined to mate with the man that awakens her from her slumber with a kiss. Unfortunately for her, that person turns out to be Ataru. Although she has no real desire to sleep with him, for the sake of her race, (And initially because when Lum first dragged Ataru away from their initial meeting, Kurama responded "What is it about other peoples things that makes me want them"), she goes to great lengths in an attempt to turn the perverted letch into a man worthy of fathering her children while fighting off both Lum and Shinobu. She has the ability to create powerful gusts of wind with her multi-use giant leaf.
- Absolute Cleavage: Her bodice leave little space to immagination.
- Blow You Away: She has the ability to create powerful gusts of wind with her multi-use giant leaf.
- Combat Hand Fan: Her weapon is a giant leaf that she uses as a hand fan.
- Dude, She's Like, in a Coma!: She was going through with a tradition where she put herself in suspended animation till a prospective mate woke her up by kissing her.
- Half-Human Hybrid: Her mother was an alien tengu, while her father was a famous Japanese warrior.
- Human Alien: The only alien treats are the little crow wings on her head.
- I Can Change My Beloved: She tries to reform Ataru, but eventually gives up once she realizes that reforming Ataru is impossible.
- Jerkass: She's usually a mean person towards others.
- Looking for Love in All the Wrong Places: Every potential mate is a failure. Ataru is a pervert, Mendo turned out to be too pathetic and cowardly, Ryuunosuke wasn't really a man like she thought and Rei seemed like the one until she saw he was really an idiotic tiger-cow.
- Ms. Fanservice: Wears a skimpy outfit, has several bath scenes and in a occasion her breast are visible when one of her tengu remove her bodice.
- Really 700 Years Old: She has a youthful appearance, but her father was Yoshitsune Minamoto, a famous warrior who lived during the 1100's.
- Rich Bitch: A princess with a rude and unpleasant attitude.
- Stripperiffic: Kurama has an outfit well established in all the episodes in which he appears, composed of a bodice black / blue laced on the breasts with a yellow bow in life, boots, several bracelets and a black collar.
- Tengu: She is a Cute Monster Girl version of the Tengu (though she trades the long nose for little crow wings on her head and is thusly an avian Petting Zoo Person). She's also served by more traditional Karasu Tengu (which are runty little humanoid crows).
Lum's parents (Mr and Mrs. Invader)
Lum's father is voiced by: Ritsuo Sawa (JP), David Krause (EN), Anthony Lawson (EN, Movies)
Lum's mother is voiced by: Reiko Yamada (JP), Kristen Foster (EN)Lum's father is a huge, pudgy oni, and tends to be loud and scary. However, he is just as afraid of his wife as Ataru is of Lum. Lum's mother is a pretty woman who can only speak in the oni language.
- Big Eater: Luma's father.
- Big Ol' Eyebrows: Lum's father.
- Fat Bastard: Lum's father. He ate his wife's meal after he finished his. Then when his wife kicks him out, He demands that she apologize. Thankfully, said wife is quick to put him in his place.
- Gonk: Lum's father, only a few one panel Joke Oni have been as monstrous as him.
- Huge Guy, Tiny Girl: Lum's dad towers over most of the cast, while her mother is much closer in height to them.
- I Was Quite The Looker: Lums's father used to be a decent looking fellow revealed in a flashback. He gained A LOT of weight because his wife stuffed him up with her cooking.
- Ugly Guy, Hot Wife: Lum's father is stout and rather brutish-looking. Her mother...considerably less so.
- Unnamed Parents
Voiced by: Keiko YokozawaA firefighter who takes great pride in her work. When Ten was living with her, she would tell him stories of her work in the field, expressing her contempt for arsonists and pyromaniacs, who she feels should be sent straight to Hell. She is very busy and would leave him with a robotic nanny, which has contributed to his precociousness. Since her son breathes fire and uses his power liberally, he lives in terror of what will happen should she ever find out. She loves Ten very much, despite the rareness of her being able to visit him.
- Catch Phrase: "FIRE!!"
- In Harm's Way: It's implied that she feels the most comfortable when fighting fires—the bigger, the better.
- Parents as People: While she usually left Ten int he care of a robotic nanny, she regrets not being able to spend more time with her son.
- Unnamed Parent
- Workaholic: She constantly carries around her firefighting equipment.
The Spice Girl Gang: Sugar, Ginger and Pepper
Voiced by: Tarako (Sugar), Chika Sakamoto (Ginger), Rumiko Ukai (Pepper)A trio of teenage girls who currently attend the same junior high school that Lum, Benten, and Oyuki did. Due to their seniors' reputation for causing mischief, the Gang of Three seeks to outdo their predecessors by defeating them in combat, but most of the time, they resort to simple pranks and underhanded schemes.
- Butt Monkey: None of their schemes really work out, often with humiliating results. Being thoughtless jerks with a high opinion of themselves, they tend to have it coming.
- Cat Girl: Ginger.
- Chameleon Camouflage: Sugar's special ability allows her to blend in with her surroundings. While this would be useful for sneak attacks, Sugar's habit of announcing the technique as she's using it makes it easy to track her down.
- Dark-Skinned Blonde: Ginger, especially in the 2012 OVA.
- Edible Theme Naming: All three of them are named after spice-related condiments.
- Faking the Dead: Ginger is able to slow down her bodily functions to the point that an untrained observer will believe that she is dead.
- Goldfish Poop Gang: These three lack the sense, power, or competence to be any sort of real threat most of the time.
- Human Aliens
- Magic Pants: Pepper, who can shed her skin at will. This includes a replica of her clothing, leaving Pepper fully clothed.
- Odango: Sugar's hairstyle.
- Terrible Trio: The three of them are often seen together, causing trouble for Lum and her friends.
Voiced by: Yukiko NashiwaAn extremely strict parent. She always blamed Ran for many misdeeds that Lum committed as a young girl and constantly punished her with a severe spanking.
Voiced by: Yoshiko SakakibaraThe antagonist from the first movie, Only You. She is the lovely ruler of planet Elle. When Ataru was a child, he played a game of shadow tag with Elle and it is a custom on her planet that stepping on someone's shadow counts as a marriage proposal. Now she has came to claim her husband.
- Chainmail Bikini: Her outfit consists of a rose-red one-piece "swimsuit" beneath a regal white cape.
- Childhood Marriage Promise: She wants to marry Ataru even if by force because they played a game of shadow tag and on her planet stepping on someone's shadow is considered a marriage proposal. At the end it turns out Ataru never stepped in her shadow in the first place and therefore their engagement is null.
- The Collector: She collects all of the handsome men that have ever loved her and freezes them for storage inside a giant refrigerator, to "keep their love forever fresh."
- Dude Magnet: She's attracted a considerable number of suitors by the time she shows up.
- Forgotten Friend, New Foe: She met Ataru when they were both little kids, but Ataru forgot all about her until she shows up during the movie.
- God Save Us from the Queen!: Downplayed example—she's a beloved ruler on her homeworld, but she's rather obstinante and determined to have her way no matter what.
- World's Most Beautiful Woman: Not just of her own planet, but of the entire universe. 999 men prior to Ataru certainly thought so.
- Yandere: Towards Ataru—when he tries to call the wedding off, she will not take no for an answer.
Voiced by: Kaneto ShiozawaThe prince of a world of total darkness, giant mushrooms, and flying pigs. It was arranged by his great-grandfather that he would marry Lum.
- Arabian Nights Days: His kingdom has this theme.
- And Now You Must Marry Me: He kidnaps Lum and tries to force her to carry out their Arranged Marriage.
- Arranged Marriage: It was arranged by Rupa's great-grandfather that he would marry Lum.
- Childhood Friend Romance: With Carla. Near the end of the movie, Rupa admits that he doesn't really want to marry Lum and asks Carla to marry him.
- Dark-Skinned Blond
- Disposable Fiancé
Voiced by: You InoueRupa's childhood friend. Ever since they've been children, Carla has loved Rupa. When one day Rupa showed Carla a picture of Lum, his bride-to-be, Carla changed from a childhood friend to a violent assailant.
- Chainmail Bikini
- Childhood Friend Romance: With Rupa. Near the end of the movie, Rupa admits that he doesn't really want to marry Lum and asks Carla to marry him.
- Clingy Jealous Girl: Ever since Rupa told her about his engagement to Lum, she has constantly threatened and terrorized Rupa out of jealousy.
- Dark-Skinned Blonde
- Double Standard: Abuse, Female on Male: She has spent most of her life attacking Rupa with weapons like her gun.
- Mad Love: Carla loves Rupa, but he's engaged to another girl. Carla's response to this is to constantly chase him down, attack him and even try to kill.
- Odango Hair: Her hairstyle.
- Palette Swap: She kinda looks like a more native Shampoo.
- Purple Eyes
- Small Girl, Big Gun
- Stalker with a Crush
- Yandere: She did NOT take Rupa's engagement to another girl well. Since then, she has spent most of her life chasing him and trying to kill him.
Ataru's father is voiced by: Kenichi Ogata (JP), Marc Matney (Dub for public TV), Alan Marsh (Dub for BBC3), Jerry Winsett (EN, Movies 1 and 3-6 dubs), Larry Robinson (Movie 2 dub)
Ataru's mother is voiced by: Natsumi Sakuma (JP), Dorothy Rankin (Dub for public TV), Stacey Jefferson (Dub for BBC3), Belinda Keller (EN, Movies 1 and 3-6 dubs), Jackie Tantillo (EN, Movie 2 dub)Ataru's father is a typical salaryman. Wearing a yukata around the house, he desires a nice and quiet homelife. In the anime his home is frequently destroyed, causing him to lament over the mortgage. Ataru's mother is a typical housewife, who is extremely ashamed of her son.
- Abusive Parents: Ataru's mother is the verbally/emotionally abusive type. Just look at her Catch Phrase.
- Adults Are Useless: Ataru's father just sits reading his newspaper hoping the insanity will stop.
- Butt Monkey: Quiet, timid, and possessing very little dignity, Ataru's father tries his best to hide his face behind the newspaper during bad situations, often wishing he'd be treated better since he's the sole provider for the family.
- Catch Phrase: Ataru's mother usually says "We never should have had him!"
- Even Evil Has Loved Ones: Despite their verbal abuse, both parents are genuinely upset when they think Ataru has died in an early chapter, with the mother even bursting into tears. The father cries out that Ataru may have been a fool, but he was their fool.
- Housewife: Ataru's mother.
- No Accounting for Taste: Together they have an annoyingly common domestic relationship that is either dull as dirt, or on the rocks.
- No Sympathy: Mostly because of Ataru's mother; in the first manga story, Ataru's mother said "Ataru, you be sure to come home for the holidays!" and she always laments "I wish I never had him" throughout the manga and anime (sometimes in hearing range of Ataru). Atop that, there's the "omiai" scene in the movie Only You, where Ataru's parents force join with Lum's parents to force him to marry her officially...all so that Ataru's parents will get better lives for themselves on the Oni homeworld.
- Perpetual Poverty:
- Ataru's parents are always struggling to make ends meet, even though Ataru's "wife" is a princess from a highly advanced alien planet (at one point, she casually pays an intergalactic taxi fare which amounts to the value of all the oil on planet Earth).
- Ataru's dad regularly worries about how many more payments he needs to make on the house. Not once does the word "foreclosure" ever come up, and at the end of the series he and his family still have their home (despite it being completely destroyed several times).
- Salaryman: Ataru's dad works long hours and worrying about the mortgage, especially since his house is routinely destroyed.
- Unnamed Parents: Their names are never revealed.
- Why Couldn't You Be Different?: Ataru's mother is constantly going "I wish I never had him." There's also a scene where both parents are away reminiscing about their life, and when they start talking about Ataru, both say that they had wanted a girl at the time.
- Your Cheating Heart: Ataru's mother has a crush on Rei, to her husband's despair.
Sakuranbou aka Cherry
Voiced by: Ichiro Nagai (JP), Eric Paisley (EN)A wandering monk. Cherry has amazing spiritual powers (or so he claims) and he often predicts doom for Ataru.
- Big Eater: His vow apparently doesn't apply to food, as he is exceedingly gluttonous, and often offers his services in exchange for a free meal (or simply blatantly eating other's food despite not planning to help with anything, often eating everything before anyone else can have any).
- Catch Phrase: "'Tis fate."
- Gonk: Played horribly straight for those who have to endure his close-ups.
- Meaningful Name: His name Sakuranbo is the Japanese word for "cherry," as he likes to be called. But in another sense it can also mean "deranged priest".
- Miniature Senior Citizens
- Sitcom Arch-Nemesis: For reasons known only to the annoying monk himself, Cherry constantly interferes in Ataru's life and gives him grief for his corrupt personality, base desires and bad luck. He has taken a vested interest in seeing through his downfall.
- Verbal Tic: Cherry ends most of his with "-ja", which is pretty stereotypical of old men in Japan.
Voiced by: Machiko Washio (JP), Karen McIntyre (EN)Cherry's niece. She was once a very sickly girl who suffered from a variety of ailments. Many of them were the result of spirits that infested her body. After meeting Ataru the first time, she tried to exorcise him, during which process, the demons who inhabited her transferred themselves to the unlucky young man, rendering her perfectly healthy. Soon afterward, she took a job as the Tomobiki High school nurse, where she again encountered Ataru and half accidentally exorcised the disease spirit still haunting him from that encounter. Like her uncle she loves eating and sometimes gets into a fight with him over it.
- Aloof Dark-Haired Girl: She's very tall and beautiful, has long black hair and pale skin and possess a graceful and aloof attitude.
- Big Eater: She also has a figure that never changes no matter how much she eats - And she's actually the biggest eater in the cast.
- Charles Atlas Superpower: Like Shinobu, she is capable of superhuman strength when is angry.
- Cherry Blossom Girl: Her name is Sakura and is related to healing due to being a Miko and a nurse.
- Cool Big Sis: To Lum and Shinobu.
- Dude Magnet: All the boys at school find her attractive. Ataru seems to like her most of the other girls. Ten also developed romantic feelings towards her, but she rejected him as well because he was too young for her.
- Hello, Nurse!: Regular reaction of every male to her, especially Ataru.
- Hospital Hottie: One of her Berserk Buttons is to see the boys hurt themselves to have an excuse to go to her for help - she beats them up in punishment.
- Ill Girl: Born with a weak constitution, she suddenly collides with a runaway Moroboshi Ataru outside of a ramen place. She detects evil spirits within him and offers to purify him, but her true intentions were to transfer the evil spirits attached to her illnesses to him.
- Meaningful Name: Sakura means "cherry blossoms".
- Miko: She acts as an priestess too as she and Cherry are seen many times trying to exorcise evil spirits.
- Ms. Fanservice: She is the object of affection for the male students of Tomobiki High School, especially Ataru.
- Only One Name: Her full name is unknown, as she is only ever referred to as "Sakura".
- Only Sane Woman: Compared to the other characters, she's actually calm (especially when Ataru is not around), wise, and mature.
- Rapunzel Hair: Has long black hair.
- School Nurse: She joins the Tomobiki High School staff as school nurse.
- So Beautiful, It's a Curse: Especially if boys like Ataru chase you.
- Statuesque Stunner: She has never been given any height, but once cured of her sickness, she becomes tall, slender and incredibly beautiful.
Voiced by: Kazuhiko Inoue (JP), Sean P. O'Connell (dub for public TV), Eric Meyers (dub for BBC 3)Sakura's fiance. Tsubame is mellow and somewhat weak-willed in comparison to the strong and powerful Sakura. He is also a magician, trained in Western magic but with very little success.
- The Ditz: He is indecisive, foolish and slow witted.
- Engagement Challenge: He is introduced trying to impress Cherry with his magic so he approves his engagement to Sakura.
- Ethnic Magician: Tsubame is a wizard who practised black magic in the west. As a result his magic has a distinctly North American and European flair.
- Inept Mage: He is not very good with the magic.
- Magicians Are Wizards: The way he executes his skills make him seem more like a performing magician than a wizard.
- Meaningful Name: Tsubame is the Japanese word for "swallow" (bird). Ozuno means "from Oz".
Voiced by: Tomohiro NishimuraA giant ghost cat that goes to great lengths to sit under a kotatsu because it hates being cold. He originally was a kitten who was abandoned centuries ago and froze to death, so the spirit does little else but seek out warmth. He often can be seen as a companion for either Cherry or the Tomobiki High Principal, usually enjoying tea with them. He also occasionally acts as a companion to Ten which could be in part due to Ten's ability to breathe fire.
- Kotatsu: He love sit under a kotatsu because it hates being cold.
- Mega Neko: He appears to be a enormous cat that is around 10 times bigger than normal cats.
- Odd Friendship: He gets along well with Cherry and Ten, but he seems to be closest to the Tomobiki High School Principal, whom he is often seen drinking tea with.
- Our Ghosts Are Different: He is a giant ghost cat.
- Super Strength: He's the strongest character in the series, easily capable of overpowering Benten (another character with Super Strength) and defeating Kenshiro in five seconds flat.
Voiced by: Mami Koyama (JP), Michele Seidman (Dub produced for public TV and movie 3 dub), Toni Barry (Dub for BBC 3)Shuutarou's younger sister. Ryoko is a spoiled girl whose only amusement seems to be the creation and execution of elaborate plans intended to drive her older brother mad.
- Annoying Younger Sibling: She finds the greatest pleasure in tormenting her brother which is a full time occupation of hers. She knows how overprotective her brother is of her and she likes to use it against him. She'll concoct intricate plots that serve to ultimately infuriate, humiliate or even kill him. She'll even flirt with Ataru just to see her brother fly off the handle.
- Bitch in Sheep's Clothing: She acts like a cute and innocent girl, but she'll try and harm you...and acts if like nothing has happened.
- Catchphrase: She frequently states "I hold no grudges" as she is leaving a trail of grenades behind her.
- Childhood Friend Romance: She has loved Tobimaro ever since their childhood. The poor guy only has memories of her tormenting him, though.
- Clingy Jealous Girl: Ryoko is one girl you don't want to make jealous. Poor Tobimaru has learned it the hard way.
- Cute and Psycho: She's lovely, demure, well-mannered and won't hesitate to throw a grenade at your feet when your back is turned.
- Faux Affably Evil: The way she acts is almost charming, and it's easy to forget that she's really a devious and twisted Manipulative Bitch.
- Hime Cut: Her hairstyle to indicate her position as a high-class lady.
- Karma Houdini: Never pays for her actions.
- Lack of Empathy
- Loving Bully: Claims to be in love with Tobimaro, and she has been pranking and tormenting him since childhood.
- Mad Love: For Tobimaro, who most of the time just tries to get the hell away from her. Poor Tobimaro has gotten his share of pain from Ryoko's disturbing "love".
- Manipulative Bitch: She certainly appears to be a sweet girl. But underneath this veil of innocence lurks a twisted mastermind.
- Noblewoman's Laugh
- Ojou: She acts like a lovely, demure and well-mannered girl.
- Rich Bitch: A spoiled rich girl who enjoys being cruel to others.
- Royal Brat: Ryouko has a legion of servants and dresses in kimonos and Victorian dresses while dutifully pulling out grenades and voodoo dolls or putting on a Wounded Gazelle Gambit to mess with her brother and his friends, all while conveying that she never holds grudges.
- Sadist: She uses underhanded mischief and devilish practical jokes as a primary source of pleasure.
- Screwy Squirrel: Growing up, always getting her way, having ever luxury a girl could want Ryoko became easily bored. But she found that causing trouble and watching people squirm was the best form of entertainment.
- The Sociopath: She requires little to no provocation to mess with her brother or anyone else, all the while bemoaning how she had "done all she could" to help her dear older brother.
- Spoiled Brat: As Mendou, but she's just less pompous and more, more sadistic.
- Yandere: Her quite disturbing love for Tobimaro.
Shuutarou and Ryouko's parents
Mendou's father is voiced by: Mugihito (JP)
Mendou's mother is voiced by: Akiko Tsuboi (JP)The very proud and dignified heads of the Mendou conglomerate. The father is a bit of a flake and a jokester which he often hides behind an air of seriousness. The mother is old fashioned and refuses to use modern conveniences.
Voiced by: Bin Shimada (JP), Scott Whiteside (Dub for public TV and movie 4 dub), David Jarvis (Dub for BBC 3)The son of the second richest family in Japan and Mendou's rival. Although he and Mendou were childhood friends, they had a falling out concerning a long-standing baseball rivalry, even though neither is any good at baseball—Ton can't pitch and Mendou cannot swing, and so Ton returns to settle the score.
- Big Brother Instinct: He comes to care deeply and become protective of his sister Asuka.
- Exotic Eye Designs: His eyes have star-shaped pupils.
- Extreme Omnivore: He can eat baseballs.
- He-Man Woman Hater: Ton-chan has a certain mistrust and dislike of women, which stems from his childhood with his rival's sadistic sister Ryoko.
- Hilariously Abusive Childhood: All thanks to Ryoko.
- Hot-Blooded: Complete with Hot Blooded Sideburns even.
- Long-Haired Pretty Boy
- Meaningful Name: Mizunokuji is a play on the real-life Mizuno sporting goods company which is known best for their baseball equipment.
- The Rival: He is Shuutaro Mendo's baseball playing, starry-eyed, childhood rival.
Voiced by: Sumi ShimamotoTobimaro's sister. The very beautiful and petite girl was isolated, according to the Mizonokuji family's tradition, from any and all males from the moment of her birth until the age of 16, at which time an omiai will be held for her to get married. As such, even her brother was unaware of her existence until then. Thanks to her daily training and the genetics she inherited from her mother, she is insanely strong. Nevertheless she is extremely timid and deathly afraid of males, in part because the first one she ever met was Ataru Moroboshi.
- And Call Him George: Being loved by Asuka is perhaps more dangerous than scaring her because one hug from her can crush a man's spine.
- Arranged Marriage: With Mendou.
- Beautiful All Along: Asuka doesn't look very attractive at first, because of the armor she wears. After Lum accidentally destroys the armor, we see how beautiful she actually is.
- Big Brother Attraction: Subversion: the extremely sheltered Asuka fears all men except her "big brother" ("a special kind of man who is just like you!"). She considers Mendou (her fiance due to a family agreement) her brother because she heard Ryoko refer to him as such once and Ryuunosuke, since she was wearing her sarashi that matched her actual brother Tobimaro's. Guess which "brother" has to endure rib-crushing hugs in his bed or bath? Hint: he's rather terrified of this and their mother blames it on him.
- Break the Cutie: Parodied. She would likely be the one to break anyone in half. Now, if only her nemesis wasn't Ataru...
- Catch Phrase: "EEEEK! A man!!"
- Charles Atlas Superpower
- Does Not Like Men: Kept isolated from men according to family tradition, she inherited her mother's super-strength, which is her way of getting rid of all those scary men (unfortunately for her, the first man she ever met was Ataru). Of course that's the lesser evil, as her brother Tobimaro can testify, as being classified as a "big brother" ("a special kind of man who's just like you") combined with the fact that Asuka developed a crush on him means rib-crushing, literally-back-breaking hugs.
- Exotic Eye Designs: Her eyes have star-shaped pupils like her brother.
- Extraordinarily Empowered Girl
- Fragile Flower
- The Ingenue
- No Social Skills
- Perfectly Arranged Marriage: She warms up to the idea of marrying Mendou after she finds out he's a "big brother" like Tobimaro.
- Sheltered Aristocrat: She was kept isolated from the outside world her entire life to avoid contact with any and all males, according to the Mizonokuji family's tradition. As a result, she's very naive and develops an extreme fear of men because of Ataru.
- Shrinking Violet
- 24-Hour Armor: Asuka likes to wear a tank-like armor because it makes her feel safe.
Tobimaro and Asuka's parents
Tobimaro's mother is voiced by: Yukiko Nashiwa
Tobimaro's father is voiced by: Issei FutamataHeads of the Mizunokuji sporting goods empire. The mother's problem lies with her children's warped relationship. She is even more powerful than Asuka. She can even do the "angry big-head" technique.
- Beware the Nice Ones: The mother.
- Charles Atlas Superpower: The mother.
- Demon Head: The mother's "Angry Big-Head" Technique.
- Exotic Eye Designs: The mother.
- Frozen Face: The mother.
- Henohenomoheji: The father.
- Ugly Guy, Hot Wife
- Unnamed Parents
Voiced by: Masahiro Anzai (JP), Langley McArol (EN)A very creepy individual. His family ran a small seaside teashop for generations, and he seeks an heir to continue the business after he dies. However, he believes that only a man can run it and his late wife Masako left him only a daughter, Ryuunosuke. Not one to let that get in his way, he proceeded to raise her as a boy and succeeded in making her a man among men, if only she were a man. He also is inspired almost entirely by the sea. If he gets too motivated, he shouts "I LOVE THE SEA!!", which is accompanied by a massive tidal wave regardless of his location.
- Abusive Dad: He fulfills at least several of the types of abuse in regards to his daughter Ryuunosuke. Apparently solely because of his insane levels of chauvinism, he is convinced that a "mere" girl is unable to run his precious (run down) tea shop, and so he has forcibly raised her as a boy, despite her protests, since her mother Masako
diedleft him. He refuses to allow her to buy any feminine clothes, both by refusing to give her money to do so and stealing/destroying any she does manage to get, demands she speak in masculine fashion, refers to her only as a male, frightens off any boys she acts interested in, encourages girls who are attracted to her, insults and mocks her femininity, and otherwise goes out of his way to thwart any attempt by her to discover her feminine side. He routinely enforces his desires with violence, and though she is quick to degrade him and beat the tar out of him in return, he always manages to beat her. For some insane reason he has dozens of pictures of himself, baby Ryuunosuke and women hired for that purpose posing, so many so that even he can't remember which one of them is the real Masako Fujinami, and so Ryuunosuke will never know what her mother looked like (although he has claimed at least that Ryuunosuke looks right like her mother -and Lum checked it with a lie detector only in case-). Despite his daughter's extreme distaste and discomfort, he set up for her an Arranged Marriage with a male-to-female Wholesome Crossdresser, Nagisa.
- Amazingly Embarrassing Parent
- Catch Phrase: "I LOVE THE SEA!!!"
- Jerkass: A complete asshole who doesn't care about anyone but himself. He spends his time making life impossible for his daughter just because he doesn't want to accept she's a girl.
- Unnamed Parent: His actual name is never given in the series.
- Why Couldn't You Be Different?: He wanted Ryuunosuke to be a boy... so he deludes himself into thinking she is one.
Kitsune-koA young kitsune that develops a crush for Shinobu when he first meets her.
- Interspecies Romance: A young kitsune with a huge crush on the human girl Shinobu.
- Kitsune: He is a little fox spirit.
- Nice Guy: He's maybe the only character in all the story who isn't obnoxious or dangerous.
- Rescue Romance: Kitsune developed a major crush on Shinobu after she saved him from getting beat up by a gang of punk dogs.
- Ridiculously Cute Critter: He is very cute.
- Shapeshifting: Like foxes of mythology Kitsune can polymorph. His transformation power allows him to make himself look like a short fox version of the other UY characters.
Voiced by: Kaneda KimotsukiA gang leader of Butsumetsu High School who has enormous lips. He is often seen chasing Shinobu.
- Abhorrent Admirer: The disgusting Soban nearly always charges at Shinobu yelling "Shinobu-san suki da!!!" but is always met with a punch to the face.
- Determinator: He just won't take no for an answer.
- Gonk: He is a big-lipped, pea brained juggernaut high-school punk.
Voiced by: Hirotaka Suzuoki (JP), Jonathan Soronen (Movie 5 dub), Edward Glen (Nub for BBC 3)An employee at the Fate Production Bureau which makes doorknobs to the Dream Realm. A bumbling yet kind-hearted young man who wears a rabbit costume which allows him to travel freely to and from subspace. He ends up falling in love with Shinobu after she finds him passed out and hungry in the street and gives him some food.
- Dogged Nice Guy: Towards Shinobu.
- Hair of Gold, Heart of Gold: He has blond hair and he's the nicest guy in the series.
- Love at First Sight: He falls for Shinobu right away.
- Meaningful Name: His name comes from a children's story called "The White Rabbit of Inaba".
- Nice Guy
- Official Couple: With Shinobu.
Voiced by: Toru FuruyaA young man who grew up all alone in the Mendou Family Electric Jungle and was raised by his "Grandfather" (a TV). He has built up a resistance to electricity and therefore cannot be affected by Lum's shocks. Shingo falls in love with Lum and kidnaps her, but when she is rescued by Ataru and the others Shingo falls in love with Shinobu. He later becomes Mendou's personal ninja bodyguard.
Voiced by: Mitsuki YayoiA guy who was raised as a girl. He is introduced as a ghost because he and his father died as a result of overeating sea urchin-flavored kakigori. Long ago he was engaged to Ryuunosuke through their parents, and fell in love with her upon meeting her. Later Nagisa gets a new flesh-and-blood body and moves in with Ryuunosuke.
- Arranged Marriage: With Ryuunosuke.
- Back from the Dead
- Charles Atlas Superpower: To the point Ryuunosuke cannot compete with him.
- Cute Ghost Girl: In his first appearance, Nagisa was a ghost and since he looks so feminine, everyone thought he was a cute girl.
- Foreshadowing: His true gender was anticipated by Ataru and Mendo not trying to grope or woo him, and is revealed after they both realized this.
- Gender-Blender Name: Nagisa is a name which is often given to girls, but boys have this name, too. Makes sense since his father wanted a daughter and raised Nagisa as such.
- House Husband: He definitely acts like one.
- Love at First Sight: Towards Ryuunosuke.
- Masculine Girl, Feminine Boy: Feminine Boy to Ryuunosuke's Masculine Girl.
- Raised as the Opposite Gender
- Unsettling Gender Reveal
- Wholesome Crossdresser