This article contains information beyond anime broadcast which includes official informations from the original light novel and the manga adaptation.
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You just walk the path you believe in. And don't forget, you're the main character in your own life story!
— Glenn to Sistine in "Gold Digger!?"

Glenn Radars CharBox

Glenn anime 2

Glenn Radars manga

Glenn Radars
グレン=レーダス Guren Rēdasu
Alias The Fool (愚者, Gusha)
Renn Gladars (レーン=グレダス, Rēn Guredasu)}
Epithet Mage of Justice (正義の魔法使, Seigi no Mahōtsukai) (self-proclaimed)
Great Teacher (大先生, Dai-Sensei) (self-proclaimed)[1]
First Appearance
Light Novel Volume 1
Manga Volume 1, Lecture I
Anime Episode 1
Voice Actors
Japanese Sōma Saitō
Ayane Sakura (Child)
English Josh Grelle
Personal Data
Race Human
Status Alive
Gender Male Icon Male
Birthday December 7
Age 19
Height 180 cm
Professional Status
Mage Ranking Trede
Affiliation(s) Alzano Imperial Magic Academy Symbol Alzano Imperial Magic Academy
Saint Lily Magic Girls' Academy (former)
Imperial Court Mage Corps Special Missions Annex (former)
Occupation(s) Magic instructor
Operative (former)
Partner(s) Sara Silvers (former)
Image Gallery

Glenn Radars (グレン=レーダス, Guren Rēdasu) is the protagonist of the Akashic Records of Bastard Magic Instructor series. He becomes the substitute teacher in Sistine Fibel's class, after the disappearance of her favorite teacher. After an event where he saved his class, he decided to become a full time magic teacher due to the previous one being a criminal. He was once a famous assassin known as #0, "The Fool" (愚者, Gusha) who was said to be an amazing magician killer working for the Imperial Court Mage Corps Special Missions Annex. He is also the creator and current holder of "The Fool" card, which negates magic around him.


Glenn Radars anime visual

Glenn is a young man of a tall height with a muscular physique.

He has long black hair that is tied back into a low ponytail with a red hair tie, with a messy fringe that covers his forehead. Generally, he wears a white half-sleeved shirt with a red tie tied loosely, black pants with gold trim at the seems, accompanied with matching black dress shoes and black laced gloves.

On rare occasions, he wears the standard instructor's uniform which consists of a black cloak and a pair of glasses.


Episode 2 screenshot 5

Glenn's immature nature.

He is very lazy and constantly bored by everything, with his primary focus being sleeping or eating. Not surprisingly he has an immature, dirty, and mischievous side, which has caused some to become greatly annoyed with his actions. He doesn't show respect to most people even giving some of them nicknames such as with Sistine who he calls "White Cat" or Halley Astry whose name he intentionally messes up. However, he did bow and show respect to the Queen.

Previously, Glenn was very outgoing and had aspired to be a mage of justice though he was ridiculed in school for his unimpressive skill, though he was still a rather determined soul who refuses to give up when his sense of justice kicks in and will use up everything he has in order to complete his goals. However, his time in the army, and the death of his partner Sara, has caused him to become jaded and give up such goals. This was best seen when he denounced magic as nothing but a killing tool to Sistine Fibel to which he earned a slap to the face.

When he actually puts his heart into it, he can regain his old passion as he showed his class new ways to use magic, which in turn somewhat changed his own perspective as he comforted Sistine once she realized his previous statement about magic was correct. His old drive to use magic came out when trying to rescue Rumia from Huey's magic circles that he was more than willing to use up all of his magic and put himself in harm's way in order to save her.

On top of this, Glenn happens to be a bit of a strategist, showing his skills in monologues in order to help him gain the upper hand in combat. In battle, he goes at with indifference which causes his opponents to not take him seriously but he happens to be quite stronger than he leaves off. Once he shows his true strength, his enemies realized too late of how they underestimated his abilities before they are overwhelmed.

When his past is brought up, he seems to dislike talking about it as he is ashamed that he couldn't be more useful and ended up wasting his life in bloodshed than actually doing the greater good he originally intended to perform.

It is shown that when the situation comes to it, he shows he possesses a good heart as in his time as a an assassin he quickly rescued Rumia from danger and promised to support her. When he learned it connected her to late grandfather, he apologized to Sistine for his cruel words about magic after much to her and the class' shock.

Although he originally hated being a teacher, Glenn has become very attached to the role and acts like that of a caring instructor for his students as the series goes on. He enjoys helping his students; wanting to put them out of danger's way as seen when he rushed to the academy and saved Sistine from Jin Ganis. A prominent example of his care for his students was when he saved them from death at the hands of their old teacher Huey Lysen, despite being severely wounded. He even gave Huey a well-deserved punch to the face for putting his students in danger, which showed how attached he had become to them. He has taken to observing and memorizing their talents, this was very surprising considering his lazy attitude towards most things. Due to being treated and called a hindrance when he was in school, Glenn doesn't tolerate his class being insulted as he defended them from Halley Astry and even risked starving himself on his class winning the magic games.

Despite his laidback and easygoing nature, he is shown to have a darker side that only a few know. After encountering several angel dust addicts, he became engulfed with rage, causing him to kill most of them ruthlessly, something which disturbed Sistine.


Physical Power

During his time working for the Imperial Court Mage Corps, Glenn has acquired an astounding amount of military hand-to-hand combat skills, which is especially useful when he is unable to use spells because of his original magic currently still activating. He could perform "magic" Magical Punch, an overpowered version of a typical punch where Glenn tricks opponent, spins his fist around as a distraction only to kick his enemy.

Although he had no further use for it, Glenn retains a degree of knowledge in the arts as he used it to overpower Carrel Mardos and Jin Ganis without earning as much as a scratch but his skill has gotten rusty over time.

Glenn wounded

Glenn Radars' pain tolerance.

Along with his great skill, Glenn has excellent durability have endured several arduous battles in the past as an assassin. His endurance has helped him become capable of withstanding multiple wounds and attacks without losing the motivation to fight. Even while seriously wounded from multiple sword wounds, he successfully killed Reik Fohenheim who was amazed by Glenn's strength. Even while wounded and drained after saving Rumia, he knocked out Huey Lysen with a single punch.

Magic Usage

Even though he is seen as a third rate mage, that does not change the fact he is exceptionally strong compared to other mages of the same rank.

Having been taught magic by Celica Arfonia, Glenn has amazing knowledge about magic spells. While Glenn lost in a duel to Sistine, it is heavily implied that this was intentional as Sistine noted in his later lectures and battle that he tricked her by acting like a slacker.

He is a capable teacher, as he taught his class new ways of learning magic and in the magic festival his class won the games because of his teachings before the events.

He knows what will happen to spells if you modify their spell chants in a certain way. He can proficiently use many different spells, and can use them with unofficial chants in which he used "Shock Bolt" saying "Well, anyway, paralyze" instead of the original chant. He can use a deadly spell called Extinction Ray, a devastating ray that can destroy everything in its way, but it significantly drains his mana. As shown, when he got mana deficiency after using it and became grey-skinned and sick.

"The Fool" Arcana

Glenn is capable of using Original Magic by activating a card called "The Fool's World", which nullifies all spells in a specified area, with the exception of spells that are already activated. The downside of its use is that Glenn Radars also cannot use any magic since he too is in the specified area. While initially thought by his peers to be a worthless spell, Glenn was able to prove them wrong since it gives him the chance to overwhelm his opponents with his hand to hand combat skills.


Though typically seen as lazy, Glenn has proven to be very intelligent as he graduated from the magic academy at the age of fifteen which is notable as most had to finish the whole course of school. However, his attitude belays his skills as by putting up his acts his foes tend to drop their guards allowing him to gain victory.

He also has shown to have an exceeding amount of strategic knowledge, which was shown when he takes control in his class after he memorized their talents for events at the magic games festival they'd be best suited for.



Child Glenn

Glenn first learning magic.

A few years ago, a young Glenn had lost his family due to an unknown accident, which left him with no memory of his past. As such he was subsequently adopted by Celica Arfonia, a powerful mage who worked directly under the Alzano Empire. After some time passed, Celica soon came to love Glenn as a family which he soon returned. She taught him all she knew about magic, which fascinated him. Glenn found a purpose and swore to become a mage of justice who would use his magic to protect those around him.


Although he didn't have a strong sense of mana manipulation and chant reduction, he was enrolled in Alzano Imperial Magic Academy at the young age of 11.[1] He did not fit in very well at the academy, only being seen as a hindrance or pest because of his low skill and supposed poor use of magic, such as his development of The Fool's World. As a result, Glenn was not allowed to participate in many school activities, and missed out on having a fun life at the academy.

However, his talents were acknowledged by the Imperial Court Mage Corps, and he graduated at the age of 15 and eventually joined the mage corps and continued with his desire to fulfill his dream of saving people with his skill. Some times after that, under Sion Rayford's request, Glenn Radar started his investigation on Project:Revive Life. Due to Rainer Layer's betrayal, both Sion and his sister died as Glenn only found the latter dead. Then, he learnt the existence for the product of that project called Re=L, who was designed and structured based on Ilushia's genetic code and then awakened her.

For the next three years, Glenn was an outstanding mage assassin code-named "The Fool", and became friends with fellow soldiers Albert Frazer and Re=L Rayford. At one point, he saved a young Rumia Tingel from being taken by a group of assassins and told her he'd side with her even if the world was against her.[1]

Disinterest in Magic

His time in the military eventually caused him to lose his admiration and interest for the magic arts, as he viewed it as nothing more than a killing tool. His new jaded views resulted in him being dishonorably discharged from the military, and he left the world of magic behind him and called his former dream foolish.

Following this, he mostly lived off Celica and did not leave her home for a year. Celica worried for him and decided to have him serve as an instructor at his old academy, although hesitant he agreed.


New Magic Instructor

Late on his first day of work, Glenn ran through the town and yelled at two girls who were in his way to move. His yelling scared them as he was flung into the sky by one of them, causing him to land in a fountain but he emerges alright though in an eccentric manner. He notices one of the girls and seems to recognize her but her friend, Sistine, throws him back into the sky with her magic, and he falls in the fountain again. Glenn then heads for the school and encounters the girls from before in his class, but denies knowing them though they point otherwise. Glenn simply lazes about in class and doesn't bother teaching the students, much to their annoyance, especially with Sistine, who soon challenged him to a magic duel which he lost due to his slow chanting skills.[2]

Despite his loss in the duel, this did nothing to change anything as he still lazed about but when criticized for his lack of interest in magic by Sistine. In response, Glenn insulted magic by coldly stating it is merely a tool used to kill which caused Sistine to slap him and state she hated him, and ran out of class crying as he was unfazed by it.

Later on, while alone he was thinking of resigning from his teaching position until he found Sistine's friend Rumia Tingel trying to perform a spell with a magic circle. He soon helped her with completing the magic circle. Glenn later told her of his past before he became a teacher as Rumia tells him a tale from when she was saved and being very thankful towards the mage who rescued her. She then encouraged Glenn to continue being a teacher and apologize to Sistine after he is told her reason for loving magic was, due to a connection to her late grandfather. Pondering on this act and encouragement, Glenn choose not to resign and take a new approach to things.

Episode 2 screenshot 2

Glenn teaching his class another use of magic.

The next day, Glenn arrived to the class on time where he bowed his head and sincerely apologized to Sistine, much to her and the class' (save a gleeful Rumia) surprise. Though he reiterated his disdain for magic, he admitted that his words went a little too far before apologizing to her again. After that Glenn decided to teach, as the class wondered what brought this change in him. He then insulted the class as they brought up his lack of talent in chanting as he agreed but decided to show them other ways to use magic, as they were amazed by it. With his new teaching style, he began regularly conducting lectures and became rather popular in his class and even students from other classes had snuck in for one of his lectures. Glenn even gained praise from the other teachers as well as the ire from Halley Astry who was flummoxed at his popularity.[1] Though he now teaches, he still doesn't act properly as shown while he treats some students well especially Rumia, he still treated a few of them mostly Sistine with mockery. This was shown when he erased a lesson on the board even after she politely asked him not to, or when he had her carry more books than Rumia, after she offered to help.

Glenn became very happy and attached with his role as a teacher, as noted by Celica Arfonia who remarked on this change as he apologized for worrying her. He later helped Rumia and Sistine with some work while he was rude to Sistine, he answered receptively to Rumia while stating to an angry and curious Sistine that he treats them differently as he states because Rumia is sweet while she's cheeky, much to her annoyance. One day, while running late, Glenn found the town deserted and sensed a presence and told the person to come out as it was revealed to be Carrel Mardos who told him he was going to kill him before attacking Glenn. It is unknown exactly what occurred in their fight but Glenn effortlessly overpowered Carrel and humiliated him by tying him up and stripping him, as he left the unconscious and naked man for the town to find presumably to be arrested.

Glenn then went to the academy where he found a guard that had been killed and took out a magic card that would allow to get through the barrier that was protecting the academy. He pondered on what to do since he didn't know how many enemies there were and wanted to call for back-up but a explosion from his class alerted him.

Glenn soon entered the school and casually walked into a room where he found Sistine about to be assaulted by Jin Ganis, a criminal who was comrades with Carrel. He nearly leaves, jokingly thinking it was mutual but she tells him to save her from being assaulted as he realizes the situation, to Sistine's irritation at his late realization. When Jin demands to know how he entered, Glenn shrugs this off as Jin tries to attack, as Sistine warns Glenn, but he ignores this. However, Jin can't attack, due to Glenn revealing a spell on a card known as The Fool's World that blocks off magic but reveals it affects him too. Jin breaks out laughing wondering how a mage can fight without magic, as Glenn revealed he'd used his fists and overpowered Jin, making the latter's attempt to fight back futile. Jin recognizes the fighting style as the one the Imperial Army uses and questions Glenn's identity, as Glenn gives his name and his status as substitute teacher.

Jin was surprised to hear that Glenn was the same teacher that Carrel was assigned to kill, he realized that since Glenn was still alive then his comrade lost the fight and questioned how his comrade lost to a man who resorted to brawls than magic. He is then asked by Glenn if he is feeling bad after he lost to something other than magic as he plans to finish him with a punch but this was a trick as Glenn kicks him in the face, knocking him unconscious and defeating him.

Glenn then freed Sistine and hinted at some of his past but Sistine stopped him by pointing out that his pants being down, to his dismay. Glenn soon tied up Jin and discovered his alignment with the Researchers of Divine Wisdom just as Celica contacted him. He informed Celica of the situation and they discuss what to do next, with Celica being at a conference and the portal to the school destroyed; Glenn knew he had to take action.[3]

After he found out Rumia was taken, he was confused as to why they went for her and stopped a crying Sistine from going after her since she'd be in danger as well. Sistine then tearfully agreed with Glenn's previous statement about magic but he comforted her and told her he'd kill the other criminals to save Rumia.

Episode 3 screenshot 4

Glenn fighting living skeletons.

His statement causes Jin to awake and laugh, telling Sistine that Glenn is no different from him or his comrades pointing out his feat in taking him down. At that moment, a portal opens with living skeleton who attack Glenn who can barely stand against them until Sistine provides help. With that, Glenn destroys a majority of them as he and Sistine retreat as Jin taunts them before he is killed by the skeletons. Glenn tells Sistine they have no obligation nor time to save the criminal before he tells Sistine to use a spell for him. When she states she can't do so, he tells her she can if she listened to him but does threaten to dock her grade, to her dismay.

After Glenn destroyed all the skeletons, Reik confronted Glenn and Sistine with swords enchanted in magic. He remarks that Glenn was no ordinary mage as he took down two of his comrades but Glenn stated Reik killed Jin as the criminal justified his killing of Jin since he strayed from the mission and had to be punished for his actions.

Glenn then pushed Sistine out of the way as he prepared to engage Reik who revealed he was aware of Glenn's The Fool's World and he knew Glenn couldn't deactivate active magic which meant his swords would be unaffected. Reik then attacked Glenn who suffered a few wounds from the strikes before trying to use a spell which Reik dispelled and tried to use it himself. However, he stopped as he realized Glenn's strategy was to get him to use a spell so he could use fool's world ands attack him with his fists. He further realized Glenn's status as an instructor was a façade and questioned his identity but after getting a vague answer, he decided to give Glenn a quick death as a form of respect.

Glenn was soon stabbed multiple times and started to use a chant to deactivate the spell, just as Sistine helped him in dispelling the magic in the swords as Reik realized Glenn tossed Sistine aside as a strategy to catch him off-guard. The criminal tried to activate his swords again but Glenn used his unique card and stabbed Reik with one of his blades that was without magic.

Critically wounded, Reik finally recalled Glenn as the famous mage assassin "The Fool" before he died unable to understand his defeat.[3]

Glenn soon collapses from his wounds and dreams of his time as an assassin before awakening in the infirmary being tended to by Sistine. He briefly reprimands her for her continuous use of healing magic but is told by the worried girl, it was needed to save him and he rests once more. Glenn then recalls his time of wanting to be a "Mage of Justice" until he wakes up again to find Sistine asleep.

He is then contacted by Celica and tells her of what happened, to her disbelief. He proves it by informing her, he already took down two of the criminals, as she tells him that his theory of the portal to the school being destroyed was accurate. The two then realized there was inside man and Rumia was still present on the grounds.

Glenn then snuck out of the infirmary and promised Sistine he'd save Rumia. Leaving, Glenn was attacked by rock golems guarding a tower as he deduced Rumia was being held there. After avoiding several attacks, he made his way through the building and located Rumia.

Glenn then meets the last criminal his predecessor Huey Lysen and quickly used The Fool's World that blocks off magic but Huey reveals that it helped his plan, showing off a magic circle Rumia is trapped in which Glenn couldn't see in the dark. Huey reveals once Rumia was teleported, his soul which was connected to it would cause an explosion to destroy the academy though he gives Glenn the chance to save Rumia or himself.

Not hesitating, Glenn works hard to save Rumia by using his magic repeatedly and though wounded he puts in a lot of effort. However, he soon collapses and looks like he won't be able to do so, as he is taunted by Huey him but is shocked when Rumia heals him and transfers enough mana to help him allowing him to save her.

As Huey reflects on his path and laments on how it probably would have been easier to remain a teacher as he asks Glenn for an answer. However, Glenn admits he doesn't care as Huey made his choice and punches Huey for putting his students in danger. Huey was then knocked unconscious and Glenn fell unconscious in Rumia's lap. Much later, Huey is arrested for his crimes.

A month passes, Glenn learns of Rumia's past as a princess from Celica but decided it was no bother to him. He is then questioned as to why he decided to become a full time instructor, as he remarks that his smiling students brought this change about in him and how he needed a place to nap, just as Rumia and Sistine arrive with questions.[3]

Magic Festival

Begging the head master and Celica for money, Glenn was rejected and was blasted at by Celica for wasting her time but the head master told Glenn of a way to get money. He informed Glenn of the magic festival and stated if his class were to enter and win the competition, he would get the prize money for it. Recalling Sistine and Rumia asked for his help in this and him shrugging it off, Glenn quickly changed his perspective and rushed to the classroom.

Glenn then shows up in the classroom just as Sistine and Rumia were trying to get members. His recent ignoring of this is brought up, though he shrugs it off and tells them he'll make the decision of who joins as the class prepare for headache. However, Glenn surprises them with his declaration of leading them to victory as he starts his selection method which earns surprise and protest from many of them until he gives his reasons since there are events which are best suited for a few. In his selection, Glenn shows he has been paying attention to their talents and habits as they are surprised and flattered by his faith in them, though Sistine unknowingly ruins a possible change of plans because of a disagreement with Gibul Wisdan who had suggested another plan.[4]

Afterwards, a sullen Glenn sat beside himself as he recalled that he was ostracized by his class, preventing him from joining the games when he was a student, which was why he had forgot about it. He bemoaned his luck before he saw the smiling faces on his class training that quickly changed his perspective before he saw them about to brawl with Class 1.

Intervening by seizing the two arguing boys by their collars, Glenn questioned the reason before Halley Astry arrived as Glenn irritated him by purposely getting his name wrong. Halley then told Glenn to get his class out of the area as they are nothing but a hindrance, which caused Glenn to reflect on his being called that name as a child. In response, Glenn got angry when Halley insulted his class and told him that his class will win as he made a wager with him of three months salary on which of their class will win the magic games festival. Glenn's choice got his students to smile at his belief in them, while he internally realized what he said in his anger and attempted to take it back before Sistine once again ruined his plans as Halley accepted the bet confident he'd win. Glenn then got over his compromising situation and decided to train his class in preparation of the games.

At the games, the class performed with enthusiasm and success that surprised even Glenn who was beginning to think they might actually win but he got uneasy with their constant praise of him after they believed it was due to his belief in them.

Glenn went outside struggling with his hunger as Lynn Titis comes to him for help about shapeshifting in the contest. He demonstrates by changing into Rumia which impresses her as he gives her motivating words. Sistine appears with food and believing he is Rumia gives it to him, but before Rumia appeared and Sistine canceled out his spell. He tried to leave though she blasted him in the sky.


  1. 1.0 1.1 1.2 1.3 Episode 2
  2. Episode 1
  3. 3.0 3.1 3.2 Episode 3
  4. Episode 4
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