The protagonist of the story. A young girl and a seamstress' daughter who dreams of one day becoming a witch, who ends up having her dream fulfilled at a terrible cost.
- Audience Surrogate: Like the audience, Coco knows nothing about the world of the witches and how magic works, therefore the exposition also serves to explain things to her.
- Blood Magic: Coco accidentally used it when one of her bottles with magic ink was swapped by one with blood by the Brimhats, resulting in an absurdly powerful spell that turned a river into sand.
- The Chosen One: An evil variant. She was chosen by the Brimhats and they refer to her as "Savior" and want her to participate in some sort of big, long-term plan of theirs.
- Disappeared Dad: Coco's father passed away from an illness years prior to the plot. Her mother is deadly afraid of Coco eventually leaving her.
- The Hero: Coco is the main-character. She's unexperienced, but very kind-hearted and loving and just wants to save others.
- Mage Born of Muggles: Played with. Coco is born from a normal family with no ties to the witch community, but she goes on to become a witch when she learns that magic can actually be used by anyone with magic ink.
- Naïve Newcomer: She's completely new to the world of witches, and is still learning about how everything works.
- No Good Deed Goes Unpunished:
- Coco draws a magic rune to turn the rock beneath a person to sand and rescue them without harming them in Chapter 11. The effect somehow spreads enough that even the river turns to sand, and she gets accused of being a Brimhat due to it being too powerful, with them getting ready to erase her memories. Thankfully, the rest of her group steps in to stop him.
- Coco takes pity on the people of Romonneau that were turned to gold and gives them a warmth stone. They place it inside of a Magic Mirror that amplifies the effect and it ends up melting them, for which they thank her for the Mercy Kill.
- Pimped-Out Dress: Whenever it's shown what she would look like as a Brimhat, Coco is portrayed as wearing a huge, layered black dress◊.
- Signature Move: Qifrey mentions that her specialty is the use of straight lines in her glyphs.
- Stock Shoujo Heroine: Being a newcomer to the world of magic in an effort to depetrify her mother, Coco is often clumsy with practice, but she more than makes up for it with her wit, determination, and empathy. She also becomes quite the central figure of the story, with her fellow apprentices looking to her for companionship and support while the antagonistic Brimhat organization seeks to make her a representive for black magic usage.
Agott (Agate/ Agete/ Agethe) Arkrome
An apprentice at Qifrey's Atelier, Agott is a perfectionist who, at first, is at odds with Coco.
- Abusive Parents: It's implied someone in her family, possibly her father or guardian, refused to teach her anything because she was not good enough for them, and that's why she is studying under Qifrey.
- Broken Ace: Agott is by far the most talented and skilled of Qifrey's apprentices, which her sister-apprentices eagerly confirm and praise her drawing skills and knowledge of magic. However, Agott suffers from self-esteem issues over being considered merely average compared to the witches in her family and she takes that out on others like Coco who she doesn't think either deserves magic or have the talent to do so.
- Brutal Honesty: When she meets Coco, she gives her sympathies about her mother, but immediately says that what happened to her is Coco's own fault and she's likely lost forever. She also mentions that she is more useful than Richeh in a battle due to her studies, which she says not to hurt her, but to make Richeh go somewhere safe while she tries to deal with the Brimhat.
- Dark Secret: It's later revealed that Agott had been kicked out of previously studying under the master who those of her family normally would, which was a secret she'd been desperate to keep from Coco and the others. What could that reason have been? According to Rolga, she apparently tried to pass off someone else's magic as her own.
- Dislikes the New Guy: She's the only one in Qifrey's Atelier who openly dislikes Coco from the moment she arrives. She goes so far as to push Coco into taking the first witch's test, which Qifrey deemed too dangerous for her, while fully expecting Coco to fail or give up so she loses the right to become a witch apprentice.
- Fatal Flaw: Orugio calls her out on her constant need to prove herself. He points out that any task they have to help others should be taken with respect, but Agott really wants the big tasks. When she is told to help dry the clothes of people lost in a storm she almost refuses because she wants to do something bigger and thinks of herself above that.
- Foil: To Coco. Whereas Coco is a newbie in magic associated with bright colors, amazed by every magic and upbeat all the time, Agott is a brilliant magician associated with dark colors, who sees magic as very mundane and is mostly an extremely serious child. This difference actually contributes for them to start learning from each other, as Agott starts seeing things out of the box, instigated by Coco's personality, while Coco looks up to Agott and uses her as another tutor from whom she wants to learn.
- Karma Houdini: Agott forces Coco in a test she is not ready to and could have very well died in the process, but she doesn't get punished by their professor nor does it seems that anyone holds her accountable for that, given that Coco was capable of coming back just rather dirty but without injuries. Agott later points out that Coco should have gone to the professors about it, but Coco herself decided not to because she saw it as a challenge she needed to overcome.
- The Perfectionist: She won't accept her magic performance to be anything but perfect.
- "Reason You Suck" Speech: She gives one to Coco when the latter accidentally interrupts her drawing a magic circle while they're trapped in an alternate dimension with a dragon, calling her out on having gotten the girls into the mess because she went after a brimhat.
- Spell My Name with an "S": Is it Agate? Agete? Agathe? The Kodansha English language translation has her go by "Agott."
- Dishing Out Dirt: Her specialty seem connected to the use of sand. She is shown often using sand to create fluffy beds that can be used to rest and stop falls, while also using sand to create cages to contain enemies.
- Genki Girl: An extremely upbeat, loving girl that tries to help everyone she knows and keep the mood high.
- Girlish Pigtails: Tetia wears part of her hair pulled into bunches on the side of her head. This emphasizes her youthful exuberance and bubbly personality.
- Good Feels Good: She loves being thanked for being nice to others, so as soon as Coco thanks her for help when they meet, Tetia thanks for her thanks since it feels great to be thanked for a nice action.
- The Heart: She's the upbeat and loving member of the apprentices, and is often the one to get everyone grounded and keep the mood up by being loving to her friends.
- Nice Girl: Tetia is a very sweet girl and her first impulse at all times is to help others, she is even introduced by helping Coco.
- Rose-Haired Sweetie: Tetia has pink hair and is the sweetest and most energetic of Qifrey's apprentices.
- Spell My Name with an "S": Is it Tetia or Tethia? The Kodansha English language translation has her go by "Tetia."
- Third-Person Person: She refers to herself in third person sometimes.
A seemingly emotionless and childish apprentice at Qifrey's Atelier.
- Affectionate Nickname: Her older brother Ririfin called her Richéritto sometimes.
- Apathetic Student: Richeh was originally dismissed by another atelier because she refused to learn anything she didn't want to. At Qifrey's Atelier, Richeh is still stubborn about not wanting to study and draws whatever magic she likes, which leaves Qifrey doubtful of how to teach her.
- Big Eater: whenever food is involved Richeh is shown in the background either staring at said food while drooling, or chowing down enthusiastically.
- Character Development: By the end of the Second Exam Arc, she has learned that she can't remain insular if she wants to help her friends, she won't grow by refusing to learn from others. She decides to use things she learned from Qifrey and Eunie to help them at the climax.
- Dismotivation: Richeh hates the possibility of changing anything about herself and her magic style because she's scared her magic stops being "Richeh's magic." This is why she refuses to study and learn anything new about magic, even saying she doesn't want to take any of the witch tests.
- Freudian Excuse: Her isolation and refusal to change her way to do things come from watching her brother being broken by training in another atelier that refused any changes to what he was teaching. She decided that she would not let anyone change what she is doing.
- Growing Up Sucks: Richeh has this opinion. She dislikes the idea of losing herself to become someone else, even if it means growing up.
- In-Series Nickname: Her full name is Richehlette, but everyone calls her Richeh.
- Logical Weakness: Her refusal to learn about magic that isn't interesting to her makes her much less capable of reacting to a sticky situation than her apprentice brethren.
- Spell My Name with an "S": Some translations spell her name Riché, the Kodansha English language translation has her go by "Richeh."
- The Stoic: Richeh avoids showing much emotion, though others can still notice emotions on her. She is particularly prone to showing that she's angry at people.
- Third-Person Person: Downplayed. She does not refers to herself as Richeh all the time, but she refers to her magic as "Richeh's magic", rather than "my magic".
- You Gotta Have Blue Hair: Richeh has light blue hair.
A fully-fledged witch that takes Coco under his wing after her mother is petrified, Qifrey runs an atelier where Agott, Tetia, and Richeh study as his apprentices. His childhood friend Orugio lives next door and serves as the "watchful eye" of the atelier, making sure Qifrey's students aren't getting in trouble.
As a child, Qifrey studied magic under the tutelage of Beldarut. Events in his past have driven him to hunt for information on the brimhat witches, and may have influenced his decision to take on Coco as an apprentice.
- Absurdly Sharp Blade: He carries a sword that's designed to cut water, capable of splitting a raging river enough to pull out a trapped cart.
- Attention Deficit... Ooh, Shiny!: Qifrey has a tendency to very abruptly get distracted and comment upon things he finds fascinating, whether it be a person's skill or a magical spell effect he's never seen before, even if there are more pressing matters to attend to.
- Awesomeness by Analysis: He's quite capable in analysis and has very good observational skills. he could figure out the disembodied brimhat's trick with a single glance.
- Badass Teacher: Qifrey is The Mentor of the main group, but he is quite possibly one of the most powerful witches shown so far. His water spells have been shown to be quite powerful and have been capable of fighting a dragon.
- Biseinen: Qifrey is clearly a bit older that other character and is at least on his mid 20s, but he's still a very slim, good looking man, but is likely older than the average Bishounen
- Buried Alive: When the Brimhat Witches kidnapped Qifrey as a child, took his right eye, and wiped his memories, they buried him in a coffin beneath a tree in the Silstaz woods. Heavy rains seeped into the coffin before he was rescued by the Magical Security Council and Sage Beldarut, leading to his life-long fear of drowning.
- Cool Teacher: Qifrey is basically the kind of teacher anyone would hope to have: He shows enthusiasm in showing his apprentices new things, boosts their morale when they're frustrated, helps them figure out ways to solve problems, etc. and also is genuinely interested and excited when they come up with novel ideas (or make useful accidents).
- Eye Scream: As a child, Qifrey was captured by Brimhat witches who took his right eye and left him Buried Alive in the Silstaz Woods. Ever since then, he's hidden the scar with his hair and darkened glasses.
- Eyepatch of Power: A combination of the single darkened lens in his pince-nez Lennon Specs & the swept-aside Peek-a-Bangs keeps his right eye covered, adding to the mysterious aura around him.
- Hidden Agenda Hero: It's not quite clear what Qifrey wants in his hunt for the Brimhats, why is he so obsessed with it he's willing to break the rules of witches and take in Coco. It's later revealed that his eye was stolen by a Brimhat as a kid and that he's slowly losing sight in the eye he has left. While he still has his eyesight, he wants to find the Brimhat that did that, and that is using it as part of research into forbidden, new kind of magic, and destroy both the research and the eye.
- It's Personal: It's implied his hunt for brimhats is something extremely personal to him, rather than trying to cause any sort of justice. He yells at the fact he wants to recover something that was stolen from him by a brimhat.
- Lennon Specs: Wears a pair of small, round pince-nez spectacles. One of the lenses is darkened, obscuring his eye. The other lens has a glyph on it to aid his remaining eye as its failing.
- Making a Splash: Qifrey mainly specializes in water magic. Ironically, he mentions that he actually decided to focus on water spells because he hates water, and learning magic to control water allowed him to reduce situations where he might get wet (such as washing dishes or doing laundry), and also helped him face his fears.
- The Mentor: Qifrey is this to Coco and his other apprentices. Apparently, it's common for witches to take people under them, in order to keep the witch community alive, but they only choose those capable of keeping the secret.
- No Pronunciation Guide: A "Q" with no "U" after it rarely appears in English, making it unclear if it's pronounced "Kooifrey" or "Kifrey." The original Japanese spells it "Kiifuri," so the latter is probably correct.
- Peek-a-Bangs: Keeps his bangs swept over his right eye.
- Pragmatic Hero: Played with. Qifrey is breaking a lot of rules of the witch society in order to capture the Brimhats, however, it's lightly implied that he has a personal reason to do so and is looking for a particular Brimhat, rather than doing it for the sake of the world. He is willing to even resort to erasing the memories of Mr. Nolnoa so he wouldn't need to give a piece of new important evidence to the Auditorium, meaning he used forbidden magic.
- Spell My Name with an "S": Is it Qifrey? Quiffrey? Kiefrey? Kiefley? The Kodansha English language translation has him go by "Qifrey."
The "watchful eye" of Qifrey's atelier, he mostly keeps to himself in his own atelier to meet his deadlines for creating magical items, which he specializes in creating.
- Big Damn Heroes: He gets to the fight during the second exam and saves Qifrey against the Brimhat.
- Foil: To Qifrey. Starting by the fact that while Qifrey is a white-themed character while Orugio is dark themed. While Orugio is often missing due to work, has a secret nice side and wants no involvement with the brimhats, Qifrey is present all the time, has a secret darker side and is desperately seeking the Brimhats. While Qifrey specializes in using water magic, Orugio uses fire magic.
- Face of a Thug: He always looks grumpy, haggard, and exhausted, even when dispensing good, thoughtful advice to Qifrey's apprentices.
- Gadgeteer Genius: Downplayed, magical variant. He specializes in the making of magical contraptions with practical uses such as stepping stones that light up and magical bed-warmers. Since these items can be sold to non-witchfolk for high prices, it's a lucrative business.
- Hidden Heart of Gold: He is very caring to the apprentices and gives them things that might be helpful, as well as rushing to Qifrey's aid, but every time someone points out he's acting very nicely, he tries to brush it off as something anyone would do or to his work as watchful eye.
- Playing with Fire: Orugio's specialty is fire magic, which he uses against the brimhats in battle, as well as using attributes related to it, such as warmth and light, which he uses to create magic items.
- The Red Baron: He seems to be also called "The Shining Torch" by others.
- Sweet Tooth: He has a preference for strong, sweet drinks, which causes him to get drunk on occasion.
A small animal that is attracted to magic ink. Coco takes him with her after her first test. He becomes the atelier's pet.
- A Day in the Limelight: Chapter 23.5 focuses on him as well as being narrated by him to talk about his life in the atelier and how amazed he is at the witches and their work and habits.
- Never Given a Name: "As yet I have no name." Only referred to by his species.
- Ridiculously Cute Critter: Just a fuzzy li'l worm with big googly eyes.
- Team Pet: He becomes the house's pet and is treated as such as well as being taken everywhere the apprentices go.
Mr. Nolnoa (Nornoa/ Nonoa)
- Cool Old Guy: He's a very nice guy and is very welcoming to all his customers. He even teaches Qifrey's apprentices how magic ink is made.
- Making a Spectacle of Yourself: Mr. Nolnoa either wears two pairs of glasses (with triangular lenses!) at the same time, or a single pair of glasses with two sets of lenses that can be raised/ lowered, much like a jeweler's magnifying glasses. Either way his spectacles make an impression.
Mr. Nolnoa's grandson. He's a young boy with an optical condition which from birth has rendered him colorblind, and because of that, he can't be a witch.
- Color Blind Confusion: Tartah has a condition where he can't see colors called Silverwash. This ends up biting him when an accident scatters the bottles of ink dye ingredients and leaves them disorganized.
- Dream-Crushing Handicap: Tartah, a young worker in the magic supply shop, has an eye disease that makes it hard for him to see colors. Because of the emphasis on witch education in visuals, he's been unable to become a fully-fledged witch.
- Fictional Disability: He has a fictional condition called 'silverwash' that causes him to only see the world in shades of silver. It is essentially a type of colorblindness.
- Hiding the Handicap: The readers and Coco aren't immediately aware of his colorblindness, as it is something he deliberately keeps under wraps. He compensates for his inability to distinguish color by memorizing the exact locations of where everything is organized in the store as well as each of their individual characteristics other than color.
- Muggle Born of Mages: In a sense. Literally speaking, Tartah could cast magic if he were properly taught, but because he's unable to distinguish colors, and Witch society largely doesn't accommodate for his disability, he's been left out of the opportunity for a proper magic education and barely knows anything about casting. The best he's been able to do so far is be an assistant in his grandfather's magic supply store.
Head of his own Atelier and Euini's mentor, Couccoureaux is a haughty, disdainful witch. Couccoureaux's cruelty towards Euini is one of the major drivers of Euini's lack of confidence.
Though he acts callous towards Euini, Couccoureaux is shown to conduct himself in a fawning, sycophantic manner when confronted with those in authority over him, specifically Estheath of the Magical Security Council.
- Sadist Teacher: Couccoureaux has no issues with openly belittling and insulting his only student in front of other witches. He does this as Euini stands by, unable to defend himself. Couccoureaux even has Euini browbeaten to the point that Euini will apologize after being insulted, or after another witch calls Couccoureaux out on his behavior.Couccoureaux: I would trade my right hand for her, the daughter of the distinguished Arkrome house.Qifrey: Couccoureaux, pupils are not mere items... Nor are they things to be traded.Couccoureaux: That's just the thing. At least objects can be fixed...Qifrey: How can you say such things...?Euini: Ah, um, it's fine. It's my fault for being so useless. It's all true. I'm always causing problems for Professor Couccoureaux because I'm such a poor student. Um... I mean since I'm so useless the Professor was criticized again, and I really am sorry, if only I could become a proper witch...
An acquaintance of Orugio's from their time as apprentices, Hiheart has grown up and taken on a pupil of his own. Hiheart looks up to Orugio for his craftsmanship and ability to solve problems, calling Orugio his "Senior" and often joking that he'd like Orugio to take him on as a student.
- Enthusiastic Newbie Teacher: Suzie is Hiheart's first apprentice. He's clearly very excited to be her tutor, even when she overshadows him in maturity.
A shy and insecure apprentice who has failed the second test many times and is taking it yet again with Agott and Richeh.
- Baleful Polymorph: Euini gets forcibly transformed into a Wolf Creature by a Brimhat. Worse, because it was graphed onto his skin, he might never be able to change back willingly.
- Blinding Bangs: His hairstyle covers his eyes completely, his eyes can only be seen in close ups and when he moves his hair in such a way that his eyes can be seen beneath his hair.
- Distressed Dude: The Brimhat in the second test turns him into a scaled wolf by tattooing a glyph into his skin against his will. After he becomes an animal, Coco, Agott and Tetia try to rescue him and turn him back, which is exactly what the Brimhats wanted, in an attempt to force Coco to use forbidden magic.
- Foil: To Richeh. While she is a girl who is trying to find a way to do everything in her own way, hates going by the book, and refuses to listen to others, he only has confidence in doing things exactly as he was instructed, and does very little for himself. While he is called an embarrassment by his teacher, Richeh is recognized as some of the most promising apprentices.
- His Own Worst Enemy: Euini tends to think lowly of himself and that causes him to under-perform in any given situation. He even acknowledges this eventually.
- Put on a Bus: At the end of the Second Exam Arc, the main characters realize that he is in trouble if the Great Hall realizes that he has forbidden magic in him, even if it can be controlled with the amulet Coco gave him. Richeh creates a portal gate and Alaira takes him under her wing and the two set off to hide him away from the Great Hall and make her his new teacher.
- Shrinking Violet: He has difficulty standing up for himself, and worse still gets so nervous when he knows others are looking at him that he shakes and can't draw spells properly. He eventually realizes that he can use the Mirror Mantle to hide himself in the shadows, and becomes more confident realizing he's devised a way to draw his spells in public without anyone actually looking at him.
- Spell My Name with an "S": Euden or Eunie? The Kodansha English language translation renders it as Euini.
- Voluntary Shapeshifting: Downplayed. Euini still has a glyph on the back of his neck that turns him into a scaled wolf, but Coco manages to steal an amulet that allows him to be human as long as he is using the amulet that he puts on and takes off.
- Wardrobe Flaw of Characterization: His hair is so poorly done it covers his eyes, but it hammers down his Shrinking Violet characterization and how afraid he is to talk to others.
Richeh's older brother. Richeh was abused by his teacher until he became depressed and almost catatonic, before fleeing his previous atelier and being taken under the tutelage of Sage Beldarut.
- Long-Haired Pretty Boy: He had shoulder length hair in flashbacks, but he currently has a long braid and is quite pretty looking.
- My Greatest Failure: He is deeply ashamed of not helping Richeh when his abusive teacher started targeting her as well. All he could do is tell her to flee, which she did and he didn't until much later. When Richeh comes to the Assembly, he goes to length to hide himself, unable to bring himself to face her.
Hiheart's pupil in the magial arts, Suzie is a sweet girl and an attentive student. When she's introduced in Chapter 39, she is accompanying Hiheart on a magical job request for the nobility of Claude Territory.
- Girlish Pigtails: Suzie's hair is styled in afro puff bubble-tails on either side of her witche's cap. Although she acts mature around her mentor, her hairstyle reminds viewers that she's an apprentice.
- Ambiguously Brown: She has darker skin than other character, but her origins are never remarked on.
- Elemental Hair: Her hair is shaped somewhat like wings and her main magic is to use wind spells.
- Blow You Away: She seems to have a particular skill with wind-based spells, using wind barriers as her primary spell.
- Color Motif: Her body is covered in yellow tones. She wears a cape with yellow colors, wears gold accessories and has yellow eyes.
- Multicolored Hair: Her hair is partly cream-colored and partly red.
- Pet the Dog: Unlike his teacher, she is very nice to Eunie. She allows him time to think of a strategy, doesn't berate him for being shy or awkward and at the end of the exam even compliments how he already has the makings of a good witch as he is capable of making up for his weaknesses with his strengths. She ends the arc taking him under her wing and becoming his new teacher while hiding him away from the Great Hall.
The sole witch doctor left. She is working as a doctor in the Great Hall.
The Council of Magic Security
A deputy officer of the Council. He's a cold and aloof man that thoroughly follows rules and commands a group of other officers.
- Foil: To Qifrey. While Qifrey is often referred by members of the Auditorium as a "problem child", Estheath is referred by them as a "honors student". While Qifrey isolates himself from magical society in his Atelier, Estheath lives at the center of it in the Auditorium.
- Jerkass Has a Point: Estheath was going to erase Coco's memory. While the way he behaved was definitely wrong, he is correct on the fact that the witch society runs on a very short leash and on the off chance that Qifrey really was not involved in her actions, then the Brimhats, the biggest threat to witch society, is, which, they in fact are.
- The Teetotaler: According to an extra, he completely refuses alcohol.
A member of the Council who works directly under Estheath.
- Number Two: He seems to be Estheath's direct underling and is often accompanying him around.
Echo and Etoran
A pair of rowdy twins working under Estheath in his hunt for Brimhats.
A serious member of the Council of Magic Security.
A level-headed and serious member of the Council of Magic Security.
The Three Sages
Beldarut, Sage of Instruction
One of the best witches in the world, responsible for overseeing the education of new witches and called The Sage of Instruction.
Years ago, Beldarut was Qifrey's teacher and protector. In the present day, he's taken on Richeh's brother Ririfin as an apprentice.
- Bunny-Ears Lawyer: He's quite the odd fellow, having a tendency for being eccentric and exaggerated with others, he is also mentioned to be terrible with paperwork. Even the test he passes to the main characters is odd: Surprise him. He is, regardless, a very respected and powerful witch that is among the leaders of the witch community.
- Genius Cripple: He's wheelchair bound, and has command of some of the grandest magic seen in the series so far.
- Handicapped Badass: He travels via a sort of magical wheelchair, which operates with animated goat legs instead of wheels. While initially it seems this is just to complement his bombastic personality (as if sitting constantly upon a throne), it becomes apparent he's a paraplegic.
- Ill Boy: Due to some unspecified reason, Beldarut is in bad health, so much that the person that is walking around the Assembly is actually an illusion of him made of mist that he controls, since he is meant to stay in bed resting as much as he can.
Engendill, Sage of Friendship
One of the best witches in the world, responsible for negotiating foreign relations.
- Cool Hat: His witch's hat has a pattern resembling a crown incorporated into the design.
- Ermine Cape Effect: He wears a robe with a large, fluffy collar and a witch's cap with the design of a crown on it, reinforcing his political authority by having him dress in regalia reminiscent of royalty.
- Sinister Silhouettes: One of the most powerful witches in the world, he has only been seen in silhouette thus far.
Vinanna, Sage of Law
One of the best witches in the world, who adjudicates transgressions of magic law. She wears the winged cap of the Magical Security Council.
A strange Brimhat with an eye covering his face. He was the one to give Coco her magic book and seems interested in her.
- Affably Evil: He's very cordial to Coco and can be downright caring and friendly to her, while trying to get her to embrace forbidden magic.
- Blood Magic: He uses his own blood to write glyphs, which makes it much more powerful than the normal magic ink. He forces Coco to use it.
- The Chooser of The One: He chose Coco as the "savior" of the Brimhats by giving her the forbidden magic book that would later turn Coco's mother into stone and give Coco her motivation to learn magic.
- The Corrupter: During the Second Test Arc, he actively tries to force a situation in which Coco needs his help so he can teach her forbidden magic. It's implied his endgoal is to turn Coco into a Brimhat too.
- Evil Counterpart: To Qifrey. While Qifrey wants to teach Coco how to use magic to help others, Iguin yearns for the position of Evil Mentor of her and wants her to become the savior just for the Brimhats.
- The Heavy: He is the main cause of all the problems so far in the series, but it's not clear whether he's the head of brimhats or even a particularly important one, he is just the one in charge of attempting to bring Coco to the dark side.
- Villain Takes an Interest: He yearns to make Coco his apprentice and calls her a "savior," even promising to Coco that he'd teach her everything that Qifrey wouldn't once she was ready and that the Dragon he forced them to face was a test for her.
A Brimhat witch who makes his first appearance during the second test, taking the form of a floating hat and cape. It would seem Sasaran has no apparent physical form, and thus can't be countered or attacked — unless his appearance is another Brimhat trick...
- Admiring the Abomination: He's fascinated by the mutations he inflicted on Eunie, and even stops his attack briefly to study the boy.
- Animated Armor: He appears to be this, having sacrificed his flesh to inhabit a witch's hat and robe. This turns out to be a deception, making it something similar to a puppet while he hid his real body.
- Arc Villain: He's a major antagonist during the Second Test Arc, being the one who invaded the test and trying to harm Coco's friends to force her into using forbidden magic.
- Baleful Polymorph: He left his true body to be a hybrid with a beast. The beast apparently was his pet cat when he was younger.
- Furry Reminder: When Iguin grabs him by the collar, he brings his paws to his front as if he was a cat.
- Mad Scientist: Downplayed, but he truly is devoted to research in order to find again forbidden magic that was long lost. He at one point stops to observe the recently transformed Eunie to study how the magic he used worked on the boy.