Please sort new titles alphabetically to avoid double-entries.
- La Corda d'Oro ~Primo Passo~: A girl meets a fairy who tells her she is special and gives her a magic violin. She is very upset about this. Meanwhile, there are a lot of pretty boys who play instruments.
- Lagrange: The Flower of Rin-ne: An omniskilled schoolgirl, a klutzy alien princess, and Mugi pilot color-coded Transforming Mechas to defend the Earth from Space Bishounens.
- Last Exile: A pair of fast-flying couriers get dragged into a war against their will.
- Or: Separating Church from State, with blue Unobtainium, steam-powered muskets, and shortage of water.
- The Law of Ueki: Young boy who can turn trash into trees he can control gets into a Tournament Arc chock full of What Kind of Lame Power Is Heart, Anyway?.
- Le Chevalier d'Eon: A man who randomly transforms into his sister tries to prevent the French Revolution. He is resisted by mercury-powered zombies, Catholic rune magic, and lethal poetry. Meanwhile, Japanese writers fail French history to a truly spectacular degree.
- Legend of the Galactic Heroes: Two bishounen wage war against each other for 110 episodes.
- Alternatively: People do things that people generally do... in space. This takes 110 episodes.
- The Legend of Black Heaven: A washed up rockstar-turned-salaryman now plays for aliens.
- The Legend of Koizumi: Former Japanese PM plays tile games with world leaders. Nazis ensue.
- A Letter to Momo: A thirteen year-old girl moves home after her dad dies. She is haunted by three Yokai whose sole purpose is to spy on her and steal her stuff.
- Liar Game: An honest girl and a genius con-artist get caught up in a high-stakes game and save everyone through the use of social psychology.
- Library War: A girl falls in love with a man who once bought her a book.
- Little House with an Orange Roof: Two broken families are brought together by real estate fraud.
- Little Jumper: A girl goes back in time to save her mom, forgets everything about her and develops a crush on her now younger dad. Squicky implications ensues.
- A Little Snow Fairy Sugar: Fairies control the weather by playing musical instruments and are invisible and inaudible to normals except to an eleven-year-old girl that always abides to a rigid schedule. Said eleven-year-old girl isn't amused whenever one such fairy that is in-training enters her life and is eventually forced to live with her.
- Little Witch Academia: The guys behind Panty & Stocking with Garterbelt and Kill la Kill gives you the most kid-friendly anime about witches. No really.
- Log Horizon: MMORPG players get transported into the video game world (like we've never seen that one before), except they still almost instantly respawn when they die, lowering the stakes to the point where a Serial Killer running rampant is treated as a minor annoyance. Big moments of awesome include things like cooking and writing a contract.
- Lone Wolf and Cub: Single father raises child and travels around feudal Japan, gradually losing enemies.
- Lord Marksman and Vanadis: Boy goes to war, gets captured, combines with girls to shoot off arrows. They fight civil wars.
- Love, Chunibyo & Other Delusions!: Cloudcuckoolanders: The Anime
- Love Hina: A man wants to marry someone, but he has no idea who. He also gets punched. A lot.
- Or: Girls repeatedly assault their landlord without getting evicted while said landlord tries to get into college.
- Loveless: A Kid Hero and a Bishōnen team up to fight battles with words. Meanwhile, kid's dead brother plots against them.
- Or: A 20-something bishounen university student and a grade school boy who have the same name engage in Will They or Won't They?. They will.
- Love Lucky: Average joe gets married to a pop idol. Unfortunately for him, no one can know about it.
- The Lucifer and Biscuit Hammer: Psychics with animal mentors work to protect the world from getting smashed, but the person they are protecting wants to smash it as well. Primary viewpoint comes from the one psychic who knows this and agreed to help with the smashing.
- Or: something that Studio Gainax threw out to redirect funds to Panty & Stocking with Garterbelt.
- Lucky Star: Four girls talk about nothing.
- Or: Shout-Out: The Anime.
- Lupin III: An internationally wanted felon and his gang who, when not committing relatively non-violent crimes, spend so much time stopping dangerous criminals that the pursuing cops are half conflicted on whether their quarry should be arrested or recruited.
- The Castle of Cagliostro: The felon and his gang rob a casino, only to discover that the money is fake. The felon decides to complete a job he failed almost a decade earlier, all the while trying to save a girl from having to marry her cousin who wants the family treasure.
- Lupin III vs. Detective Conan: The Movie: A Kid Detective (and friends) plus a wanted felon (and friends) fight over a gem and whether or not a pop star's show should go on. Logic is defied as usual.
- Lyrical Nanoha: Large shoulders cause spin-off of eroge to go in a completely different direction.
- Magical Girl Lyrical Nanoha: Two nine-year-old girls fight over jewels.
- Or: a little girl makes friends in a rather unorthodox way.
- Or: Girl attempts to solve an abuse victim's problems by beating them up.
- Alternatively: A giant robot anime with magical girls instead of giant robots.
- Magical Girl Lyrical Nanoha The Movie 1st: Same as above, but with even more lesbian subtext.
- Magical Girl Lyrical Nanoha Movie 1st The Comics: Same as above, but with angst.
- Magical Girl Lyrical Nanoha A's: Little girls battle German terrorist group commanded by an oblivious, lovable cripple.
- Or: Four honorable warriors attempt to save the life of an innocent little girl by feeding a book while the police try to stop them.
- Magical Girl Lyrical Nanoha The Movie 2nd A's: Same as above, but without one of the antagonists.
- Magical Girl Lyrical Nanoha StrikerS: A special forces instructor adopts a female clone of Jesus, and then is forced to shoot her.
- StrikerS Sound Stage X: An emergency worker and her friends are the only ones that can stop an invasion of exploding zombies.
- Magical Girl Lyrical Nanoha ViVid: Two members of separate royal dynasties become friends with each other through hand to hand combat.
- Or: The adventures of Clone Magical Kung Fu Lesbian Space Jesus and her friends.
- Or: Ten-year-old girl spends her free time getting into fights and hanging out with an ex member of a terrorist organization that once kidnapped and tortured her. Her mother actively encourages this, and it's never depicted as bad parenting.
- ViVid Strike!: Girl loses her best friend because of violence. Decides to get her back with violence via training herself in the application of superior forms of violence.
- Magical Record Lyrical Nanoha Force: A boy goes on the run from the police for the sake of a girl he just met.
- Magical Girl Lyrical Nanoha INNOCENT: Writers try to see how thin they can draw the line between Pseudo-Romantic Friendship and schoolgirl lesbians. Also, card games.
- Magical Girl Lyrical Nanoha Reflection: Girl steals book from preteen at the behest of her iPad.
- Magical Girl Lyrical Nanoha Detonation: iPad's father confiscates her toys.
- Magical Girl Lyrical Nanoha: Two nine-year-old girls fight over jewels.
- Macross: Humanity battles aliens with Transforming Mecha, The Power of Love and/or The Power of Rock and Lots and Lots of Missiles.
- Macross Plus: Top Gun IN SPACE!
- Macross 7: Giant robot rock band teaches psychic vampires The Power of Rock.
- Made in Abyss: Two cute kids go on a spelunking adventure and enter hell.
- Or: Some kids jump in a hole and refuse to leave.
- Madlax: An Action Girl and an Ordinary High-School Student live completely separate lives. When they meet, half of the cast dies. Existentialism ensues.
- Magic Knight Rayearth: Magical Girls, Mecha, and several other genres that should not meet, do. It somehow works. (Hint: not The Vision of Escaflowne.)
- Alternately: Girls get magic and armor that gets stronger, once it gets strong enough they ditch it for Gundams to fight an evil sorcerer in a Gundam, to save a girl from a horrible power great enough that she could have used it to save herself from it.
- Magic User's Club: Secret world-saving club gets pushed around by the anime club next door.
- Magical Circle Guru-Guru: A girl who likes to draw on the ground and a boy who doesn't like to be a hero goes on a journey to save the world from the dark lord. They fall in love along the way.
- Or, cute girl fights monsters with circles and dancing.
- Alternatively, Dragon Quest, but it doesn't take itself seriously.
- Magical Sempai: A teenager joins a magic club and learns (along with the audience) the behind the scenes of magic with his sempai. Hilarity and lots of Fanservice ensues.
- Mahoraba: Heartful Days: An art student moves into an apartment run by a teenage schizo. Hilarity Ensues.
- Maid-Sama!: A man-hating maid tries not to fall in love with a "perverted alien" from the Pheromone Planet.
- Maison Ikkoku: Loser in run-down apartment house full of crazies has a crush on the new apartment manager, a widow.
- Majin Tantei Nougami Neuro: An omnivorous schoolgirl and a hungry Lord of Change solve mysteries.
- Maken-ki!: The pervy protagonist enrolls at a former All Girl School that's recently turned Co-Ed, hoping for eyecandy. Instead, he finds it's a school for amazons and ends up getting entangled in a battle between them and an ancient shadow organization, with the fate of the world hanging in the balance.
- Manabi Straight!: Future freeter revives ridiculously weak student council as president. Hilarity ensues.
- Alternatively, Kamina is put through a Gender Bender and seeks to form Team Dai-Gurren again, but she sucks at actual leadership because there are no Mechas around despite being 20 Minutes into the Future. Instead, she's simply attending school.
- Mao-chan: Japan's military leaders make their granddaughters fight aliens with the power of Moe.
- Maoyu: Improved farming methods can save the world.
- MÄR: Marchen Awakens Romance: Teenage otaku is summoned to another world to fight evil chess pieces armed with jewelry.
- Maria†Holic: A lesbian meets the girl of her dreams. She's a he and he's a total Jerkass.
- Maria Watches Over Us: A Catholic all-girl high school is filled with students who spend most of their time trying to seduce each other, only to end up quarreling over how to organize the next School Festival.
- Martian Successor Nadesico: The crew of a civilian-owned warship fight both sides in a war, become Otaku, make up their own side spontaneously, and never solve the main problem of the show (on-screen, anyway).
- Mashle: Magic and Muscles: Monotone Super-Jock leaves the woods, attends Hogwarts, kicks the student body's nerdy asses, gets away with it and eats sweets.
- Master of Martial Hearts: Girls fight each other. Oh, and there's also a very confusing revenge plot that defies any sense of basic reasoning.
- Marvel Disk Wars: The Avengers: Kids help superheroes trapped in disks, aided by geek and a rich guy's girlfriend.
- Mazinger Z: Humongous Mecha has joysticks for the first time ever. Actually, a lot of things happen for the first time ever.
- Great Mazinger: 50% more angst and 300% more swords.
- UFO Robo Grendizer: Now with aliens! Also flying saucers.
- Mazinkaiser: Radical teen with attitude finds a robot straight out of a video game.
- Shin Mazinger: Radical teen with attitude inspires a god to throw his fist at another god. Robot turns into a giant fist in return.
- Medaka Box: A perfect girl is elected Student Council President and uses a suggestion box to better the lives of her classmates. Undergoes major change in style and tone.
- Alternatively, Remember when it was about a box and Fanservice? Yeah. We neither.
- Megalo Box: In a dystopian future, a cyborg and a homeless man beat people senseless. In the final episode, they gleefully hit each other.
- Mei no Naisho: Magical Boy goes to an all girls school.
- Memories: Three part movie from the guy who brought you post-apocalyptic nuke psychics and creepy, elderly, albino kids.
- Magnetic Rose: Woman kills her fiance on Earth. Results in the deaths of a salvage crew on her private space station decades after her death.
- Stink Bomb: A flu shot and fever medicine give a man horrible BO before setting out on the road, ruining the day for millions. Severe military ineptitude allows him to continue. NASA space marines save the day.
- Cannon Fodder: Slacker kid aspires to fire cannons instead of loading them when he grows up.
- The Melancholy of Haruhi Suzumiya: Love tetrahedron develops amidst various Twilight Zone-esque Negative Space Wedgies. Existence hangs on the outcome.
- Or: Protagonists have to keep Canon Sue entertained or she destroys the world. Again.
- Or: Protagonists attempt to prevent the wrong tropes from being realised by someone who does not know the difference.
- Or: Teenage girl thinks the universe revolves around her; turns out it really does.
- Or: Girl forms a club and bullies one of the members, none of the other members ask her to stop.
- Or: A deadpan snarker has to put up with a sociopath, an adorable girl, an emotionless girl and a boy who won't stop smiling.
- Haruhi-chan: Same as above, but with chibis.
- Nyoron Churuya-san: One girl's quest for dairy products. With the exception of her and the resident Psycho Knife Nut, everyone is a Jerkass.
- The Disappearance of Haruhi Suzumiya: A High School AU of... a High School Sitcom, via a mis-timed Wonderful Life plot.
- Memories of Emanon: A young man meets a young woman and they spend the entire evening talking.
- Mermaid Melody Pichi Pichi Pitch: Busty, slightly brainless klutz founds a group of idol singers. They search the town to add more members to their band. The Grand Finale is a sing-off with Gackt.
- Or: Sailor Moon with MERMAIDS!
- Mermaid Melody Pichi Pichi Pitch Pure: Girl group loses half its members and tries to enlist a little girl. An Delicate and Sickly girl tries to steal the lead singer's boyfriend. When she fails, she starts hearing voices in her head.
- Metal Fighter Miku: Hot girls in cool outfits wrestle each other in front of large crowds. A drunk thinks it would be better if their outfits came off. He's right.
- Midori Days: A lonely young man has a romantic relationship with his right hand.
- The Miko's Words and the Witch's Incantations: A Cute Witch seduces an enshrined Miko and elopes with her.
- Minami-ke: Three sisters (representing beauty, brains and BOSS) share an apartment together. Stuff happens.
- Mirage of Blaze: Reincarnated Samurai A does not want to be groped by Reincarnated Samurai B, except for the part where he totally does.
- Miss Kobayashi's Dragon Maid: Woman gets a maid after getting drunk. Dragons are involved.
- Or: Office worker takes in illegal immigrants. They do family things.
- Miss Kobayashi's Dragon Maid: Elma's Office Lady Diary: Interdimensional glutton does coding for a living.
- Miss Kobayashi's Dragon Maid: Kanna's Daily Life: Little girl goes to school and hangs out with her friends. Underage lesbian Ship Tease ensues.
- Miss Kobayashi's Dragon Maid: Lucoa is my xx: Hot bisexual goddess promises to make all of a wizard's dreams come true, much to his displeasure.
- Mnemosyne: Vodka is water in Russian. Mind Screw ensues.
- Mob Psycho 100: A Phony Psychic tries to teach a real psychic how to use his powers.
- Mobile Suit Gundam: An immature computer geek gains possession of a giant steel samurai, and uses it to fight off Space Nazis.
- Or: A few kids drive big robots, meet several inexperienced soldiers, and proceed to bicker among themselves. Sometimes people die.
- Mobile Suit Gundam 0080: War in the Pocket: Mecha otaku young boy befriends an ineffectual Space Nazi soldier.
- Gundam 08th MS Team: What if Romeo and Juliet had giant robots?
- Gundam 0083 Stardust Memory: A Space Nazi snatches a giant robot armed with a nuke.
- Zeta Gundam: Enraged teen becomes a terrorist after government agents call him a girl.
- Gundam ZZ: A gang of teenage lowlifes and a psychic girl fight off Neo-Space Nazis. Hilarity Ensues.
- Mobile Suit Gundam: Char's Counterattack: Space Police tries to stop Neo-Space Nazis from dropping big rocks on Earth, all while two grown men argue over who would have made a better surrogate son to a dead teenage girl.
- Gundam UC (Unicorn): More Neo-Space Nazis attempt to find MacGuffin while bing pursued by boy in oddly-named giant robot.
- Gundam NT (Narrative): Government and the remains of the remains of Neo-Space Nazis hunt a giant gold robot because it breaks the laws of physics.
- Gundam F91: An attempt to rekindle a popular franchise by ripping off the Imperial March.
- Crossbone Gundam: Pirates fight the aristocracy ... IN SPACE!
- Victory Gundam: A thirteen year-old boy must face several charges of sexual harassment from beautiful older women while waging war against religious fanatics... In Space.
- G Gundam: The only thing stopping Giant Robot Cthulhu from turning us all into cyborg zombies is one martial artist with No Social Skills and his shining fingers.
- Alternately: OK, who introduced mecha into the Tenkaichi Budokai?
- Or: At first, the key to awesomeness is a) shout, b) with your own robot, squeezing opponent robot's head till it explodes. Eventually, that's boring too.
- Gundam Wing: A girl decides that the perfect man for her is the guy who wants to kill her. Yaoi Fangirls flood mecha fansites.
- Alternately: A man plays chess by himself.
- After War Gundam X: Everyone dies in the first episode. Cute girl goes on to skinny-dip alongside a psychic dolphin.
- ∀ Gundam: Crossdressing chauffeur/spy awakens a white mustached god to bring peace to humanity and moon people.
- Gundam Seed: Angsty teens fight each other in a tale of Fantastic Racism.
- Gundam Seed Astray: Mechanic and his computer-in-a-suitcase have adventures with their giant robot.
- Gundam Seed Destiny: Angsty teens fight each other in a theme-park version of its predecessors. The characters spend a lot of time recalling past events.
- Gundam 00: Heroic terrorists try to create World Peace Through Superior Firepower. Many plot twists are revealed, and lots of people die, while fans of both genders ogle the male leads.
- 00F (manga): Another team of heroic terrorists has four giant robots but only one power supply for them. They decided to give all those to a Jerk whose love interest is a spherical cat robot.
- A Wakening Of The Trailblazer: Humans and aliens try to speak to each other.
- Mobile Suit Gundam AGE: Kid initiates three generation long plan to murder aliens. His descendants really don't like that idea.
- Model Suit Gunpla Builders Beginning G: Teenage boy joins video game tournament scene because someone took the last 1/144 Gundam model.
- Gundam Build Fighters: Children battle it out with Gunpla models to be the world's Gunpla champion.
- Gundam Build Fighters Try: Martial artist gets into model building.
- Mobile Suit Gundam: Iron-Blooded Orphans: Children and teenage activist get caught in between conspiracies involving space aristocrats, manipulative philanthropists and Yakuza Mobsters from Jupiter.
- Mobile Suit Gundam: Iron-Blooded Orphans Season 2: A Mecha Otaku formulates a grand scheme to obtain his favorite giant robot, this leads to a bunch of people dying.
- Gundam Build Divers: You got .hack in my Gundam Build Fighters!
- Gundam Build Divers Re:RISE: Ragtag Band of Misfits finds out that their game just got a whole lot real/
- Mobile Suit Gundam: The Witch from Mercury: Lesbians attend a school that teaches how to fight in giant robots.
- Mobile Suit Gundam Thunderbolt: Two mecha pilots argue over whether jazz or pop music is better.
- Modern Magic Made Simple: Panty shots, panty shots minus panties, tentacles. Then, a nerd tries to haxxor the universe. He is repeatedly foiled by washbasins.
- Mokke: Two sisters encounter the most boring ghosts Japanese folklore has to offer.
- Mononoke: An unnamed albino with Pointy Ears, Facial Markings and a Situational Sword dredges up the guilty pasts of an inn, a ship, a mask, a stick, and a train. His Literal Split Personality then uses this to kill Japanese Cthulu.
- Or: An unremarkably bizarre-looking salesman walks the technicolor earth because inanimate objects are killing people who are sometimes already dead.
- Monster: Japanese doctor sacrifices his career to save the life of a young boy. Said boy decides to thank him. Painfully.
- Or: Man stalks other man around Europe with a handgun. Other man teases him about it occasionally, while pursuing his twin sister. Blood and mayhem ensue.
- Or: Fairy tales are read to a twin. A bunch of people die because of this.
- Or: After shooting his own lawyer, escaped prisoner stalks a child abuse victim.
- Or: Doctor removes bullet from a young boy's brain, spends the rest of the series trying to put it back in.
- Or: A doctor deals with a troublesome patient.
- Or: The Farmer and the Viper: The Series
- Monster Musume: Your average ecchi Harem manga. WITH MONSTERS!
- Or, Unlucky Everydude has to choose between a snake, a bird, a horse, a slime, a fish, a spider and a girl with a detachable head for the science of Interspecies Romance.
- Or, A man tries desperately to avoid committing bestiality.
- Moonphase: A twenty-something photographer falls in love with a prepubescent girl who wants him to call her Mistress. They fight vampires.
- Moribito: Guardian of the Spirit: A spear-wielding chick protects a prince who's pregnant with a water spirit.
- Morita-San Wa Mukuchi: A girl doesn't talk; her friend does. Boys stalk them.
- Mother Keeper A 50-year old man tries to destroy the government by making his son a cyborg and then gets annoyed when his son doesn't like being a cyborg, especially since his son suddenly thinks the government is great.
- Mouse: Gentleman Thief pulls off increasingly ridiculous heists while getting raped by his three slaves.
- Moyashimon: A boy who talks to germs goes to college.
- Mujin Wakusei Survive: Gilligan's Island IN SPACE WITH KIDS!
- Murder Princess: Princess and bounty hunter swap bodies and surprise the hell out of an army of invading robo-assassins.
- Muromi-san: A fisherman catches a mermaid, and wishes he hadn't.
- Mushishi: A traveller helps people cope with invisible magic bugs.
- My Balls: A young man is given a good reason to refrain from self-abuse.
- Or: Refuge in Audacity: The Hentai.
- Or: Abstinence: The Porno.
- Or: If man has sex the world ends. He does so anyway.
- My Bride is a Mermaid: Boy gets saved by mermaid. Boy ends up in a Shotgun-esque Wedding with mermaid. Mermaid's yakuza family does not approve and tries to kill boy. Oh, and The Terminator is a recurring character.
- My Hero Academia: Harry Potter with SUPER HEROES!
- Or: A boy wants to become a superhero and gains the power to repeatedly break his bones.
- Or: Shonen battle series that gives away the ending in the opening narration.
- Or: After a large smiling man tells him to follow his dreams, a high-school Freshman decides to break his bones.
- My-HiME (anime): High School girl and her two ambiguously lesbian friends save the world from the (dis)comfort of their own school.
- Alternatively: Magical Girl show where the girls summon Mons that are literally powered by their feelings for their most beloved one. Sounds sickeningly sweet and cute, doesn't it?
- My-HiME (manga): New kid on the block walks into a Magical Girl fight. Neither wants to share him.
- My-Otome (anime): Girl enrolls in an all-female Magical Girl Warrior academy and makes a spoiled princess her pact-partner. Characters from the above series appear in abundance.
- My-Otome (manga): Same girl and two of her friends are called upon to protect a princess who's more than meets the eye.
- Mai-HiME Destiny (light novel): Not-so-ambiguously gay magical girl is handcuffed and shipped off to a school for espers.
- My Lovely Ghost Kana: A guy moves into a new apartment and has sex with a dead girl.
- A Slice of Life, Magical Girlfriend, Porn with Plot, Romantic Comedy; the main character is killed on the first page.
- My Love Story!!: Shoujo romance starring the Hulk.
- My Monster Secret: A normal teenage boy realizes the high school he's been attending has been Monster High all along.
- My Next Life as a Villainess: All Routes Lead to Doom!: Girl thinks that she's the rival in a harem series and tries to avoid her fate with farming and a toy snake. In reality, she's actually the protagonist.
- My Next Life as a Villainess Side Story: On the Verge of Doom!: Same as above, except it's a speedrun.
- Myself ; Yourself: An Ordinary High-School Student hangs out with a Brother–Sister Incest couple, the world's slowest composer, and a massive-breasted girl who talks like a chipmunk.
- Mythical Detective Loki Ragnarok: Norse gods are made into teenagers (and younger); one of them solves strange mysteries with a pink-haired high schooler.
- My Neighbor Totoro: Two sisters meet up with several forest spirits, the largest of which becomes a partial Replacement Goldfish for their sick mother.
- Two sisters do their best to cope with their mother being in the hospital with a possibly fatal unknown illness and no signs of leaving.
- The Mysterious Cities of Gold: A 16th century boy with the power to control the weather goes treasure-hunting in the New World with a princess and a rag tag band of misfits with the help of a devious bastard. While there, they stumble upon at least half a dozen Wacky Wayside Tribes, including a band of giant Vikings, some G-rated Amazons and a tribe of highly advanced asexual elves.
- Acquiring along the way a giant solar-powered warship (which they self-destruct to take out an enemy ship) and a solar-powered aircraft. At the very end, they narrowly avert a nuclear meltdown. Not only is this not being made up, it all makes sense in context, and is really really cool.
- Mysterious Girlfriend X: Boy meets girl. Boy eats girl's drool.
- The Mystic Archives of Dantalian: A veteran and a little girl search for overdue library books.
- Nabari no Ou: A traumatized English teacher tries to be a good person. Everyone ignores him - with the exception of his student, God, who mocks him and then ignores him.
- Or: Modern day Ninjas
- Or: Teenage boys fall in love with each other in a world of magical corporate ninjas.
- Nadia: The Secret of Blue Water: Castle in the Sky UNDER THE SEA WITH CAPTAIN NEMO!!!
- Or: 20,000 Leagues Under the Sea WITH ALIENS... AND ORPHANS!!!
- Nagi-Asu: A Lull in the Sea: Mer-children leave the ocean; interminable teen relationship drama ensues. Poseidon gets so bored that he tries to freeze everyone to death.
- Nakaimo My Sister Is Among Them: In order to inherit a corporate empire, a teenage boy may have to commit incest.
- Najica Blitz Tactics: A secret agent begins to fall for her robot companion while they battle an evil organization. Panties ensue.
- Nana & Kaoru: Childhood friends find an activity they enjoy doing together.
- Nanaka 6/17: An accident forces a studious girl to relive her childhood...while still in high school.
- Naruto: Title character continually gets screwed over by his "best friend," an emo with an utter lack of sense and commitment. The Big Bad looks like a mix between Voldemort and Michael Jackson. China invades.
- Or: (Supposedly) Stealthy assassins fight one another in increasingly showy battles.
- Naruto Shippuden: Title character comes home after three years of training with a perverted master. Big Bad is revealed to be a guy with weird eyes and a really overused Freudian Excuse, and then the personification of the curse from Uzumaki.
- Or: Child soldiers with hand-jive magic get embroiled in a "world war" made up of everyone vs. one old masked guy who wants to hypnotize the world with the moon and his creepy snake doctor.
- Or: Societies raise their children to be sociopaths and are surprised when the sociopaths turn on them. Ninja Jesus tries to show everyone the error of their ways.
- A man puts something in his son's stomach; the son has difficulty digesting it.
- Or: Dragon Ball Z with ninja.
- Ramen-obsessed idiot tries to force his rival to have a Heel–Face Turn. His friends include a pervert who writes erotica, another pervert who reads said erotica, a dog-man, a guy with live insects in his body, and a fat guy.
- Natsume's Book of Friends: A MacGuffin carrying boy who sees strange beings goes on a quest of name-calling with his animal sidekick.
- Nausicaä of the Valley of the Wind: The people of the future have a big bug and weed problem. The heroine's trousers make it look as if her legs are bare.
- NEEDLESS: An orphan joins a girl crazy badass and his Stripperiffic female partner in order to fight a bunch of girls in school uniforms who work for a pharmaceutical company. Or in other words, It's Scryed with little girls!
- Negima! Magister Negi Magi: A child's late father, a famous war veteran, may yet be alive.
- Or: A 10-year old wizard acquires a 31-girl harem. They're his students.
- Or: One of the few times someone can say "Want some candy, little boy?" with her teacher around.
- Or: 10-year-old junior high school teacher drags his all-girl class along on his crazy adventures.note
- Or: Manga author—er, Magical teacher turns his harem series into an action manga.
- Neon Genesis Evangelion: Superweapons are given to mentally unstable children while the mentally unstable adults plot to destroy the world.
- Kids ride giant-robot-thingies with power cords. Creator despairs that people missed the point he was trying for but continues to (re)make movies out of it.
- The End of Evangelion: Disturbed teenager works with his dead mother to turn humanity into goo.
- Indecisive boy masturbates on comatose friend. Then things get dark.
- Possible alternate title: "The other ending was too dark and confusing? How's THIS?!"
- Or: Dysfunctional teenage romance causes an apocalypse.
- Boy rides his mom for father's approval.
- Win.
- Congratulations!
- Or: A loser, an asshole, and a white-haired girl pilot giant robots under the command of a man who never moves, a scientist that speaks in mostly Technobabble, and a chronic alcoholic.
- Personal space is Serious Business.
- Or: Angsty teenagers pilot giant dead family members while trying to live a normal life with an unstable Alcoholic and fuck tons of mind screw. Also Penguins
- To sum it all up: The most Freudian guts-covered roller coaster you will ever ride.
- Nerima Daikon Brothers: Three perpetually poor farmers want to become blues singers. They fight crime.
- Nichijou: Two high-school girls pretend that boring things are epic while a third girl trolls them. Meanwhile, a shark-loving 8-year-old professor fills an exploding robot with pastries.
- Nicoichi: The daily life of a Salaryman who cross-dresses for the sake of his adopted son.
- Night on the Galactic Railroad: Two kittens go on a metaphysical journey aboard a magical galactic train.
- Night Raid 1931: A Japanese secret government agency comprised of members with psychic powers being dispatched to Shanghai, China during 1931 to conduct covert operations.
- Nightwalker: A private eye and his female partners fight demons. The private eye's ex wants him back.
- Ninja Nonsense: A high school girl hangs out with the most incompetent group of Ninja ever, and is constantly harassed by a perverted yellow ball.
- Nisekoi: The son of a Yakuza boss and the daughter of a boss of The Mafia are forced to fake a relationship to avoid a gang war. There's a little problem: the two don't seem to get along in the best of ways.
- No. 6: A Naïve Newcomer and a crossdressing actor fight bees. Subtext ensues.
- Nodame Cantabile: Semi-incompetent pianist abuses the personal space of her classmate. Sometimes the episodes consist almost entirely of an orchestra performing classical pieces.
- Noein: The title character doesn't exist and the main character defines reality.
- Noir: A cynical veteran assassin and a young amnesiac savant team up to thwart an Ancient Conspiracy. Flashbacks ensue.
- No Matter How I Look at It, It's You Guys' Fault I'm Not Popular!: A socially awkward teenager repeatedly fails at making friends, and decides to just play video games and masturbate instead.
- Nononono: The Olympic Gold Medal is Serious Business. There are also tons of angst. Considered to be Lighter and Softer compared to Elfen Lied.
- Now and Then, Here and There: Kendo Boy meets Water Girl and gets thrown into another dimension where children are turned into soldiers and serve an insane dictator.
- Nyan Koi!: A guy tries to have a regular high school life and get together with his crush. Cats interfere in both endeavors.
- Nyaruko: Crawling with Love!: Every being from the Cthulhu Mythos stalk a normal boy... under the form of cute girls. If that sounds clichéd, consider this: the lead couple are a Chivalrous Pervert and a violent Tsundere!
- Or: Ordinary High-School Student keeps eldritch otaku harem at bay with cutlery. Kamen Rider references ensue.
- Or: Alien comes to Earth to regulate the sale of porn. Spends most of her time trying to seduce a boy who isn't interested.
- Nyotai-ka: After encounter with a goddess, a young salaryman stops experiencing morning wood.
- Oh! Edo Rocket: I Come in Peace meets Men in Black in feudal Japan, with illegal firework manufacturer caught in the middle; liberal fourth wall-breaking and intentional anachronisms ensue.
- Ojamajo Doremi: An alcoholic, gambling old woman forces three 8-year old girls to work for free in her shop every day because one of them called her "witch". She insults and berates them every day, too.
- Ojamajo Doremi Sharp: Three young girls and their ex-rival take care of a baby to get their powers back.
- Motto! Ojamajo Doremi: Five young girls make baked goods to impress the witches that voted against them.
- Ojamajo Doremi Dokkan!: Five young girls have to make trinkets to awaken a former Witch Queen in order to stop her from putting the world to sleep...And the baby they were raising turns herself into a girl their age just to be with them.
- Ojamajo Doremi Naisho: Various secrets that the girls and other characters and some that never made it into the series proper have.
- Ojarumaru: Some demons are after a boy who has travelled into the present day for stealing a scepter.
- Ojojojo: Rich girl is a jerk to her friends. Romance ensues.
- Ōkami-san: Fairy tale characters attend high school. They fight crime.
- Omamori Himari: Large-breasted Cat Girl unexpectedly moves in with an Ordinary High-School Student who is allergic to cats. When not trying to seduce him she beats the crap out of demons.
- Onani Master Kurosawa: An ordinary student finds an unconventional way to dish out justice: masturbating.
- Or: Death Note parody overcomes itself to become one long Heartwarming Moment.
- One Piece: Criminals physically assault authority figures, then evade the law.
- Or: Small people with random skills go on a road trip and fight large people with government connections.
- Or: In a World… where having a dream makes you badass, Mr. Fantastic is actually entertaining, and his friends are really weird.
- Or: Stretch Armstrong the Oblivious Pirate Captain and his crew of misfits fight government conspiracies and a marine corps that employs, among other things, large men with superpowers. Meanwhile, old villains who survived have their own mini-stories on the chapter covers.
- Or: It's about a pirate made of rubber.
- Or: Rubber Gilligan collects freak menagerie for world-spanning pleasure cruise much to the irritation of his slingshot-carrying, liar friend.
- Or: The United Nations decides to publicly execute the world's most notorious criminal. This makes the Security Council's job much, much more difficult.
- Or: A series of tragic stories, each of which gets punched in the face until it becomes a happy story (except for the backstories).
- Or: A teenager made of rubber and his very weird friends use a ship to visit islands.
- Or: A group of friends travel around the world searching for something. They have no idea what it is.
- Or: Naruto with pirates.
- Or: A pirate adventure series, where almost everyone has super powers.
- One Pound Gospel: A nun helps a struggling boxer stick to his diet.
- One-Punch Man:
- An Invincible Hero is tired of being one and wants to fight someone he could defeat in more than one hit.
- Or: Bald man finds his hobby unsatisfying because there is, without exaggeration, nobody in the known universe who can actually best him at it.
- Or: The main character effortlessly wins every battle he has, because he is literally undefeatable.
- One Stormy Night: A wolf and goat are persecuted because of their romantic love... er, friendship... wait, relationship. Ho Yay and Unresolved Sexual Tension masquerading as Carnivore Confusion ensue.
- Onidere: A meek high schooler is in a physically abusive relationship with an emotionally unstable girl who is living a double life.
- Oniichan Control: Guy has a huge crush on his Yandere sister. She's okay with that. He's not.
- Onmyou Taisenki: It's like Digimon meets Kinect.
- O-Parts Hunter (manga) : A kid with odd eyes and hair wants to Take Over the World armed only with a boomerang and Satan.
- Oreimo: A High School Student and his fourteen year old tsundere sister bond over Eroge.
- Orochuban Ebichu: A woman regrets buying a hamster.
- Oshi no Ko: A doctor dies as he was to perform labor on his favorite idol. He gets reincarnated as her son and has to live with the ups and downs of showbusines with his twin sister who happened to be a reincarnation of his patient. Then their mother is murdered and the killer is related to his own death.
- Osomatsu-san: Six loser brothers share an apartment and have misadventures with a girl who sings while wearing a fish costume, a wannabe Frenchman with a ridiculous overbite, and a man with a big head who can only say his own name.
- Otaku no Video: A analysis of the otaku culture in 1980's-90's Japan, which includes the story of a star college student as he slowly descends into the realm of otaku. Also included are interviews of real otaku of different varieties. Considered the "bible of Otaku".
- Or: A college student joins his friend's Otaku club and then they go to space.
- Othello: Excruciatingly shy schoolgirl attracts very abusive friends and completely subverts Karma Houdini when her split-personality attacks people for doing wrong.
- Otogi no Machi no Rena (Manga): High school girl starts raising baby sex-demons on accident. Hilarity Ensues. It's clean!
- Otogi Zoshi: Historical Fiction about a girl who crossdresses in order to find a magic bead. Halfway through, this premise is abandoned, so her modern day reincarnation investigates Urban Legends.
- Otoboku - Maidens Are Falling For Me: A trap becomes a role model for a school full of princess-types. Male audience members find themselves questioning their sexuality.
- Or a young boy is forced to attend an all-girls school in drag by his dead grandfather for no reason other than because his mother attended it and was hot.
- Ouran High School Host Club: A poor girl is forced to pretend she's a boy and hang out with obnoxiously rich Bishōnen as punishment for destroying private property.
- At the very end of the anime, the Bishonens' fathers fight amongst themselves to have her marry their son. There is no season 2.
- Alternatively, Love Hina on LSD.
- Also alternatively, Goddamned Rich People the Series.
- Outlaw Star: A Badass Longcoat and his Adorably Precocious Child sidekick inherit a Living MacGuffin and a snarky spaceship from a dead client. Together, along with a lady samurai and a spazzy Cat Girl, they find God.
- Overlord: A nerd refuses to log off an MMORPG as it's shutting down and literally becomes his character.
- A salaryman and his army of edgy OCs Take Over the World.
- Overman King Gainer: Moving is Serious Business. A one night stand nearly dooms the world. Giant robots dance the monkey.
