Mirumo (Mirmo)
The prince of the Muglox world and Kaede's partner.
- Arranged Marriage: To Rirumu, and he isn't happy about it one bit. While they don't get married in the anime, they do at the end of the manga.
- Jerk with a Heart of Gold: He's a bit rude and selfish, but deep down has a good heart.
- Tsundere: While he doesn't approve of having to marry Rirumu, there are times where he's shown to care about her or even like her back.
Rirumu (Rima)
Mirumo's fiancee, of whom he is terrified of. Setsu's partner.
- Lethal Chef: She cooks food for Mirumo but he keeps avoiding her because of the food's appearance and taste.
- The Matchmaker: She alongside Kaede often try to encourage certain couples to get together. Rirumu herself tries to help with hooking Kaede up with Setsu.
- Shipper on Deck: She chose Setsu as her partner because she knew of Kaede's crush on him.
Yashichi (Yatch)
Mirumo's rival, a wannabe-ninja. Azumi's partner.
- Big Brother Mentor: To his partners, Sasuke and Hanzo
- Butt-Monkey: And borderline Chew Toy, as it's part of his popularity ; the other part being the open kindness he shows to his disciples Sasuke and Hanzo, and the hidden one to other characters.
- Dub Name Change
- Heroic Sacrifice: Tries to use a forbidden magic that will have him Taken for Granite forever, so that Azumi can get a single wish of whatever she wants, hoping she'll wish to get a boyfriend. Learning this, Azumi, moved, wishes for Yashichi to turn back to normal instead.
- Highly-Visible Ninja: Arguably.
- Jerk with a Heart of Gold: Like Mirumo, he can be unfriendly and impatient at times, but he helps the others when it all depends on him.
- Magic Music: A triangle
- Panty Thief: Likes to peek at and sketch girls' underwear.
- Punch-Clock Villain: He may be Mirumo's rival, but he's basically under orders. When not in mission, he gets along rather well with other characters.
- Sarcastic Devotee: To Azumi.
- The Rival: Of Mirumo
- Trademark Favorite Food: Karinto.
- Vitriolic Best Buds: With Mirumo. He also has sort of a love/hate relationship with his partner Azumi.
Murumo (Mulo)
Kaoru's partner and Mirumo's little brother.
- Annoying Younger Sibling: Can be this to Mirumo.
- Deliberately Cute Child: He knows he's adorable, and he knows he can use it to get what he wants.
- Magic Music: A snare drum
- Trademark Favorite Food: Marshmallows.
Papii
Koichi's partner, who has a crush on Murumo.
- Ascended Extra: She was only a supporting character until the fourth season, where she becomes partners with Koichi.
- Magic Music: A handbell
- Trademark Favorite Food: Candy
- Tsundere
Panta
A ghost fairy who Mirumo is afraid of, but he always loves to play with him. He is also Haruka's partner.
- Friendly Ghost
- Magic Music: A ukulele
- Trademark Favorite Food: Jelly
Kaede Minami (Katie Minami)
- Accidental Kiss: With Sumita.
- Betty and Veronica: The Betty to Azumi's Veronica.
- Dogged Nice Girl: To Yuki.
- Dub Name Change
- Dude Magnet: Kaoru and Koichi are both in love with her. Setsu eventually realizes he loves her too.
- Girlish Pigtails
- Nice Girl: She's sweet and friendly to everyone.
- Savvy Guy, Energetic Girl: Energetic Girl to Setsu's Savvy Guy.
Setsu Yuuki (Dylan Yuuki)
- Betty and Veronica: The Archie to Kaede's Betty and Azumi's Veronica.
- Childhood Friends: With Haruka.
- Cute Bookworm: Well, many girls find him cute, especially Kaede and Azumi.
- Dub Name Change
- Only Sane Man: Easily the sanest of the main characters, humans or not.
- Picky Eater: Does not like green peppers, though it's more like he's afraid of them.
- The Quiet One: Usually quiet and silent, especially at the beginning.
- Savvy Guy, Energetic Girl: Savvy Guy to Kaede's Energetic Girl.
Azumi Hidaka
- Adaptation Dye-Job: In the manga, her hair is red but in the anime it's black.
- Betty and Veronica: The Veronica to Kaede's Betty.
- Character Exaggeration: Arguably in the anime where she appears to have close to no other character outside liking Setsu and being Kaede's rival.
- Clingy Jealous Girl: But finally admits defeat and let her love go when Kaede and Setsu become an Official Couple.
- Expressive Hair: All of the strands become spiky when she's pissed (which is often).
- Hair-Trigger Temper: Tends to be aggressive and short-tempered, especially when Kaede is around Setsu.
- Jerk with a Heart of Gold
- Noblewoman's Laugh: Sometimes.
- The Rival: Kaede's for Setsu's affections.
- Spoiled Brat
Kaoru Matsutake (Kyle Matsutake)
- Chick Magnet: Attracts an army of women. He ain't pleased because he's only interested in Kaede.
- Dub Name Change
- Hopeless Suitor: To Kaede.
- Stalker with a Crush: To Kaede.
Koichi Sumita
A shy guy who appears in season 4 and becomes Papii's partner. He develops a crush on Kaede.
- Accidental Kiss: With Kaede.
- Nice Guy
- Shrinking Violet: He's a very shy person.
Haruka Morishita
A kind girl who appears in season 4. She is Setsu's childhood friend with an ambition to become a manga artist.
- Childhood Friends: With Setsu.
- Sequential Artist
Etsumi Kido
- Locked Out of the Loop: She's the only friend of Kaede who doesn't have a fairy partner, therefore she does not know the existence of fairies.
- Muggle Best Friend: To Kaede
- Tomboy and Girly Girl: The tomboy to Kaede's Girly Girl
Mr. Tsuchida
Hirai
Kaoru's butler who devotes his entire life to him.
Saori Eguchi
One of the new main characters during the second season. She is transfer student who is also a professional flute player. She is also possessed by Dark.
- Allergic to Love: Sneezes whenever someone brings up the topic or something about love.
- Demoted to Extra: At the end of season 2, she and Akumi (now her fairy partner) move away to Germany. Afterwards, they only have two episodes centered on them in season 3, as well as one cameo in the series finale.
- Magical Flutist: It is only magical because she is under Dark's control. Dark uses the flute's powers to spread his evil into the human world.
- The Quiet One
- You Can See Me?: Unlike all the other humans who don't have fairy partners, she actually can see fairies. That's because she's possessed by Dark.
Momo Umezono
A young girl whose family is just as rich as Kaoru's. Because of Kaoru's crush on Kaede, Momo sees Kaede as her rival. Halfway through the second season, she becomes partners with Yamane.
- The Rival: Considers herself one to Kaede because of Kaoru's crush on the latter.
Hoshino
Momo's butler and Hirai's rival.
Takumi Kiryuu
Saori's music teacher when she was little. He comes in rather late in the second season to help Saori regain confidence in her flute skills. However, it turns out he was just Dark in disguise. It isn't until shortly after Dark is destroyed that the real Takumi arrives to take Saori to Germany to study music.
- Evil All Along: Dark disguises as him to trick Saori and possess her to play her flute at a concert and spread anger and hatred into the human world.
- Parental Substitute: For Saori.
Momiji Minami
Kaede's mother.
Marumo
Mirumo and Murumo's father, and therefore the king of the Fairy World.
- Like Father, Like Son: He is selfish, just like his son. His wife Saria even says this exact quote in the first episode.
- Magic Music: A drum
- Trademark Favorite Food: Pudding
Saria
Mirumo and Murumo's mother, thus the queen of the Fairy World.
- Beware the Nice Ones: She is a very sweet queen and mother, and she loves her husband very much, but if she gets angry, then the whole world gets a big storm coming. Literally!
- Magic Music: A harp
- Trademark Favorite Food: Parfait
- Weather Manipulation: She has the power to cause a huge storm when she gets mad.
Peter
Mirumo's best friend who is also a crybaby.
- Magic Music: Cymbals
- Trademark Favorite Food: Donuts
Bike
Mirumo's friend who is said to be the most beautiful fairy in the world.
- Distracted by My Own Sexy: Is ranked up to eleven in the third season, where he has his own mirror to look and admiring his looks.
- Magic Music: A cow horn
- Trademark Favorite Food: Mont Blanc
Mambo
- Magic Music: An accordion
- Trademark Favorite Food: Konpeito
Gabin
- Magic Music: A harmonica
- Trademark Favorite Food: Bubble gum
Anna
One of the two intelligent fairies in Mirumo's class.
- Cute Bookworm
- Give Geeks a Chance: She has a crush on Bike, and their feelings are mutual.
- Magic Music: An electric guitar
- Trademark Favorite Food: Apple pie
Inchou
- Magic Music: A piano
- Trademark Favorite Food: Manju
Raichi
- Magic Music: Castanets
- Trademark Favorite Food: Gummies
Moon
Ryo's partner and one of Mirumo's classmates in the anime.- Demoted to Extra: Ryo never appeared in the anime, and therefore Moon is just another one of Mirumo's classmates.
- Magic Music: An ocarina
- The Quiet One
- The Stoic: Most of the time.
- Not So Stoic: He can actually smile, but doesn't because it comes off more as a leer.
- The Voiceless: He only talks in the manga.
- Trademark Favorite Food: Sherbet
Ocho
- Eyes Always Shut
- Magic Music: A violin
- Ojou
Chai
- All Chinese People Know Kung-Fu: He has the appearance of a Chinese merchant and is said to be a kung fu master.
- Magic Music
- Trademark Favorite Food: Spicy food
Sasuke & Hanzo
Yashichi's lackeys.
- Magic Music: A glockenspiel (Sasuke) and a vibraphone (Hanzo).
- Tongue Twister: Hanzo learns one to cast a spell that saves Rirumu from turning into a flower.
Nezumi
Yashichi's cousin.
- Meaningful Name: His name translates to "mouse".
Yamane
Nezumi's younger sister, Yashichi's cousin, and (eventually) Momo's partner.
- Cannot Spit It Out: Has a crush on her cousin Yashichi.
- Kissing Cousins
- Magic Music: A bird whistle
- Meaningful Name: Her name translates to "dormouse".
The whole gang in general
- Anti-Villain / Big Bad Wannabe: They're not really evil. They usually just play harmless pranks and only think they're being cruel.
- Big Bad Friend: For the first season and even before that, Yashichi was their executive apprentice and biggest fan until he decided to leave them in order to protect Azumi.
- Color-Coded Characters
- Ichirou: Red
- Jirou: Blue
- Saburou: Green
- Shirou: Pink
- Gorou: Yellow
- Finish Dialogue in Unison: Usually when Ichirou says something, the other four would repeat the last part of his sentence.
- Goldfish Poop Gang
- Jerks With Hearts Of Gold
- Kick the Dog: While they're usually harmless, some of their schemes can go to some extreme levels. For example, at the end of their debut episode, they summon a dark crystal orb to possess Azumi, Rirumu, and Murumo. They use Rirumu and Murumo to attack (and defeat) Mirumo. Then in the next episode, they go on to possess all of Kaede and Mirumo's friends (excluding Yashichi, Sasuke, and Hanzo, who've been following the Warumo Gang to begin with), then eventually the entire town.
- Magic Music: They all carry shamisen.
- No Mouth: They always have their masks on, even when they're eating. Even back when they first met each other did they wore masks that partly obscured their faces.
- Numerical Theme Naming: Ichirou (1), Jirou (2), Saburou (3), Shirou (4), and Gorou (5)
- The Psycho Rangers / Quirky Miniboss Squad: Depending on the season.
- You Have Outlived Your Usefulness: When the gang and Akumi hear about Dark's plan to make the fairy world disappear, they are all frightened. Dark then basically delivers this line to them.
Ichirou
Jirou
- The Dragon / The Evil Genius: Is a bit smarter than the rest of the gang, but not by much.
- Upper-Class Twit: He used to be very wealthy prior to joining the gang.
Saburou
Shirou
- Dreadful Musician: He dreams of becoming an idol, and even continues pursuing that career after the gang (temporarily) broke up one episode. Unfortunately, his singing voice is...quite weird.
Gorou
- The Brute / Dumb Muscle: The dumbest out of all the members.
Dark
The big bad of the second season. His goal is to fill the human world with anger and hatred and destroy the fairy world.
- Bad Boss: To Akumi and especially to the Warumo Gang.
- Big Bad
- Dub Name Change: To Darkman in the English dub.
- Sealed Evil in a Can: He was sealed away by the Gaia Tribe and influences Akumi, the Warumo Gang, and Saori Eguchi minds to break himself free.
Akumi
A mischievous fairy who is always causing trouble for Mirumo and his friends. She was the first fairy Dark influenced and recruited.
- Demoted to Extra: At the end of season 2, she and Saori (now her human partner) move away to Germany. Afterwards, they only have two episodes centered on them in season 3, as well as one cameo in the series finale.
- The Dragon: To Dark's Big Bad.
- Lethal Chef: Her cooking is just as bad as Rirumu's.
- Love Makes You Evil: As soon as she meets Dark, she instantly falls in love with him, causing her to break up with her crybaby boyfriend.
- Magic Music: A sitar
- Trademark Favorite Food: Caramel
- You Have Outlived Your Usefulness: When the gang and Akumi hear about Dark's plan to make the fairy world disappear, they are all frightened. Dark then basically delivers this line to them.
Rat
Akumi's partner in crime for the second half of the second season.
The Gaia Tribe are elementals of the Fairy World. They have strong powers and can cast magic without using instruments. Although they are "gods," they have the same appearances as the fairies. They first appear in episode 17, where they give Kaede the microphone that allows Mirumo's powers to increase and save the citizens of Kaede's hometown from the Warumo Gang.
The tribe in general
Fia
The Gaian of fire.
- Fiery Redhead
- Playing with Fire
- Trademark Favorite Food: Sweet potatoes. He even makes Kaede and Mirumo spend a ridiculously long time baking them for him, but he keeps criticizing them. And this was all so they could get a hint from him to solve the riddle in order to get the microphone.
Aqua
The Gaian of water.
- Making a Splash
- Trademark Favorite Food: Mizuame
Donta
The Gaian of earth.
- Dishing Out Dirt
- Trademark Favorite Food: Dumplings
Win
The Gaian of wind.
- Blow You Away
- Trademark Favorite Food: Soft served ice cream
Pikumo
The Gaian of clouds.
- Trademark Favorite Food: Cotton candy
- Weather Manipulation
Topuru
A Gaian who takes charge in making and repairing the fairies' magical instruments.
Mimomo
She is the owner of the shop. Although she is a very adorable character when she is in her true form, she is able to transform into an overweight human in order to get around the human world and escape suspicion. She is a genius when it comes to sales.
- Humanshifting: Uses this to hide her true identity from humans (or at least those who don't have fairies yet).
Kumomo
The assistant and salesperson of Mimomo Shop. She is a cute fairy who rather clumsy and absent minded in her first appearances, but really good at making sweets. Similar to Mimomo, she is able to transform into a human. However, unlike Mimomo, her transformation is a thin woman with a depressed look on her face.
- Humanshifting: Uses this as well to hide her true identity.
Takosu
Ikasu
Ryo Sanada
A tomboy who is partners with Moon.
- Lady Looks Like a Dude
- The Rival: To Kaede, for Setsu after Azumi stops pursuing him in the manga.
- Tomboy