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Shiba Tatsuya

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I lost all of what you could call feelings of love. They weren't sealed, so they can't be released. They weren't broken, so they can't be fixed. That which is lost, cannot be recovered.

— Tatsuya , Volume 5: Summer Break

Shiba Tatsuya

Mahouka Koukou no Rettousei65439

Shiba Tatsuya

Character Name
Full Name Shiba Tatsuya
Kanji 司波 達也
Furigana しば たつや
Personal Info
  • Mahesvara
  • The Destroyer
  • God of Destruction
Age 17
Gender Male
Height 175-178 cm
School First High School
Ability Name
Weapons & Equipments
  • Silver Horn Custom "Trident"
  • Third Eye
Voiced By Yuichi Nakamura
Novel Volume 1, Chapter 1
Manga Volume 1, Chapter 1
Anime Episode 1, Enrollment Chapter I
Spin-off Manga Volume 1, Chapter 1

Shiba Tatsuya (司波 達也) is the main protagonist of "The Irregular in Magic High School" light novel and animated series. He enrolled at the National Magic University Affiliated First High School in April 2095 with his younger sister, Miyuki (深雪) and got accepted as one of the students to be placed in the Course 2 curriculum, marking the start of both the light novel's and anime's series of events. In his second year, he transferred into the newly made Magic Engineering Course.

Appearance and PersonalityEdit

Tatsuya is 175cm tall (178cm in Volume 3), well-built and often described as mundane-looking compared to other characters in the series. Based on the light novel, he also was described through other characters' impressions as cute or competent-looking. He is usually expressionless and very rarely does he get surprised or enthusiastic, and whenever he does, however, it's often at the minimum level. In the anime, he has dark hair that reaches his clear blue eyes in several uneven cut bangs- he shares both his hair and eye color with his sister Miyuki.

Tatsuya is normally wearing his green, white, and black school uniform, lacking the eight-petaled flower emblem on his blazer. At home, he generally wears a nondescript black shirt and pants.

Tatsuya is intelligent and analytical. His emotions are merely skewed in a certain direction, with one particular half becoming especially sensitive. Thanks to this, he can easily and quickly categorize people into two distinctive groups: hostile and non-hostile (while normal people would see 3 types: hostile, neutral and friendly. They would have a hard time to know who is a friend and who is an enemy since they aren't sensitive). This certainly comes in handy for his military and political life and anything related to conflicts (which is almost everything in life). 

To hunger, but not gluttonous. To arouse, but not lustful. To tire, but not slothful.

— A Narrated Description for Tatsuya , Volume 3: Chapter 2

He doesn't possess the ability to hate nor could he feel any strong emotions like fury, despair, envy, hatred, disgust, gluttony, lust, sloth, and love. 

To Tatsuya, for whom not even his own death could induce ‘true fear’ — more accurately, he had been deprived of such an emotion — the fear of losing Miyuki was all the more amplified for there being no other fears to temper him and shook him strongly, deeply, and utterly.

— A Narrated Description for Tatsuya

The only aspect in him that is perfectly natural — the only emotion that remains — is his love for his sister. Because of this, he tends to either spoil her too much, or be overprotective and completely ruthless when there are threats towards Miyuki's safety. For him, his world revolved around Miyuki. In the eyes of their friends, Tatsuya exhibits blatant favoritism towards his sister, and hence is called a siscon[1].

Though contrary to his own belief, Tatsuya does have a degree of emotions and can be kind and caring towards his friends, though he is often irritated by some of them as well. While he cannot feel lust, he is attracted to and notices other girls through out the series. He also worries about his reputation and has some pride though he doesn't seek to attract attention.

Due to being treated like a fake magician, he always underestimates his own magic abilities and constantly looks down on himself, having difficulty accepting praise and grasping the meaning beneath indirect words of flirting.


MHKR 19-14

Shiba siblings' house

Tatsuya is the eldest son of Shiba Tatsurou and Shiba Miya and is eleven months older than his younger and only sibling Miyuki (his birthday falls on April 24th). They are mostly mistaken as twins for being in the same year.

Prior to the timeline at the beginning of the series, their father remarried six months after their mother's death, and the two of them are living alone in a house, which is described as a place that vastly exceeds the average size.

Their house has a basement with the same floor layout as the floor above, redecorated as Tatsuya's lab equipped with state-of-the-art equipment and space where new types of magics created by Tatsuya are tested.


Main article: Yotsuba
He was not one of them. Even though the blood of the Ten ran through his veins, he was never considered one of them.

— Tatsuya thinking to himself , Volume 4: Chapter 14

Tatsuya is a child born from the Yotsuba family. From birth he was the apparent heir for the Yotsuba family. After the birth of his sister Miyuki, and the discovery of his lack of being able to wield magic as it was intended; he became Miyuki's Guardian. Although this is the case, he wasn't accepted as a legitimate member due to the fact that he cannot wield magic. The two types of magic he can freely wield are not considered magic by the family's standards due to its nature of only 'destroying' and 'restoring' information, not 'altering' them.

At the present timeline, besides his two natural magics, he was only able to use imitation and theoretical magic, something which could be owed to his other unique abilities and superior intellect.

Despite this deficiency, he has taken advantage of his physical prowess and extrasensory perception (ESP) power to become Miyuki's Guardian, which is considered to be a job of the highest importance in the Yotsuba clan. His combat prowess has also become respected enough that he is now a primary combatant of the Yotsuba clan. 


Mahouka Koukou no Rettousei - 09 - Large 10

Experiment on a six-year old Tatsuya

Main article: Reminiscence Chapter

With the goal of giving Tatsuya the ability to wield magic like everyone else, his mother, Shiba Miya and her twin sister, also his aunt, Yotsuba Maya, experimented on the six-year-old Tatsuya. Miya used the forbidden Non-Systematic Magic 'Mental Design Interference,' forcibly altering the area in the consciousness that creates strong emotions, called the limbic system, by inputting a Magic Calculation Model, creating an artificial Magician.

The operation however resulted Tatsuya to lose his abilities of strong emotions except for his sister, exchanged for the installation of another Magic Calculation Area, that allows him after that to use short and altered magics. Though the result still insufficient to regard him as a 'true magician' for Yotsuba.

Taurus SilverEdit

Main article: Taurus Silver

The genius engineer who had advanced CAD software technology by ten years within one short year. Tatsuya is in fact, half of Mr Taurus Silver - the far famed Mr Silver. Currently, Taurus Silver heads the Third Division of Four Leaves Technology.

The name of Taurus Silver was used firstly because he was not of age when his first design is marketing as a product of the company. It also made it convenient for him to conceal his real identity and another reason was for secrecy.


Material burst

Ooguro RyuuyaEdit

Main article: Ooguro Ryuuya

This is the alias that Tatsuya is using in the military, to be specific, in the 101 Independent Magic-Equipped Battalion, as the Unregistered Strategic-Class Magician.


Tatsuya specializes in combat and assassinations. His skills in slipping behind enemy lines are top notch. 


Main article: Kokonoe Yakumo

Tatsuya is a student of Kokonoe Yakumo, a famous ninjutsu user and someone who passes on traditional shinobi[2] magic know-how. Due to this, he can handle multiple opponents at once and emerge unscathed. Tatsuya's physical abilities surpass normal magicians, who usually just rely on magic to accelerate or fortify their bodies to prevent injuries. It is also thanks to his training that Tatsuya can sense dangerous/hidden presences without relying on his unique magic, Elemental Sight. Yakumo himself has said, "It’s possible that I’m unable to beat Tatsuya-kun in pure martial arts already..." thus proving his physical prowess. Before his present age Tatsuya had learned enough techniques to be considered a master or something close. Through his ninjutsu training, he is a master of chi utilization. 

Mahouka Koukou no Rettousei74

Tatsuya vs Kokonoe Yakumo

Magical AbilitiesEdit

Main article: Born-Specialized Magician

Tatsuya is a Born-Specialized Magician (BS Magician) and is always emphasized as someone whose capability in wielding magic doesn't classify him as any more than a Rank C Magician, by international standards. The fact that he cannot alter the Eidos is one of the main reasons why the Yotsuba family treats him as an outcast or a fake Magician.

Tatsuya can only freely wield two types of magic, based on his innate ability; "direct interference into structural information" and those are Decomposition and Regrowth. One is unknown to the world while the other magic is considered difficult and high-class. Owing to this circumstance, his natural Magic Calculation Area is dominated by these two powerful magics, making him unable to wield other magics.

The magical abilities that he has obtained at birth allows him to excel in combat and assassinations, and makes him a balanced fighter. Tatsuya's magical abilities and talents gives him the greatest advantage in long-range magic. It has been stated that Tatsuya excels in extreme long-distance precision attacks and OTH (over the horizon) sniping, and can easily snipe human targets from a range roughly distanced at 1200 meters. It is indirectly implied throughout the series, that his OTH (over the horizon) magical sniping gives him the greatest attack range in the magical community.

Decomposition Edit

One of the two types of magic based on his innate magical talent- Direct Interference into Structural Information- that he can wield freely. Using Decomposition, his speed is mentioned to be 0.05 seconds for his magic to work. With no retaliation, he is capable of sniping 36 targets simultaneously, but under constant fire his upper limit for mass targeting is 24.

Highly destructive magic

Modified rifle used before creation of Third-Eye

Counter MagicEdit

Tatsuya excels in Counter Magic; some of which he has developed by himself. Some of his Counter Magics are Gram Demolition, Gram Dispersal and Pseudo Cast Jamming.



Tatsuya utilizing his martial arts training while using Gram Demolition

Systematic-Type Magic

See Also: Operation

In order to allow him to use "magic," his mother and her twin sister operated on Tatsuya when he was 6 years old, installing another Magic Calculation Area or Magic Processor (resulting in him having two by the way) into his mind allowing him to use magic. However, it was inferior to the natural processor so the only advantage the processor granted him was that it allowed him to instantly access short magics (5 steps or fewer) instantly without any buffer or calculation. Since most combat magics use 5 steps or fewer, they are available to him. Also, because the processor can show him the exact magic that needs to be used, he can only use a very long round-about method to execute complex magics (hence why he failed the speed portion of the technical exam). He is also very adept at manipulating Oscillation Magic.

Other spells he often uses are: Resonance, Phantom Blow, and Compound Waves.  

Decomposition Regrowth Counter Magic Other Movement
Material Burst Self-Restoration Gram Demolition Cast Jamming Elemental Sight Weight-Type Magic
Mist Dispersion Gram Dispersion Far Strike Flash Cast Flying-Type Magic

Magic Limiter Edit

Miyuki, as a natural Mental Interference Magician, acts as his limiter. This stops him from showing his true might, making him unable to use his Strategic spell and blocking his access to his psion reserves. When the limiters are released, he is surrounded by a maelstrom of psions that would cause anyone to lurch away from him; an amount greater than his sister's and Mayumi's. The full effects of this limiter are currently unspecified and thus it's unknown if it affects his ordinary magic talent or limits his ability to use his natural magics. 

As for Miyuki, while she is limiting her brother, her magic territory is also sealed as half of her Magic Power is used to seal her brother's power. This causes her magic to escape her control, causing her to accidentally lower the temperature in the room whenever she is upset.

Magic EngineeringEdit

Related Articles: Four Leaves Technology | Taurus Silver

He has shown a genius-level ability to create new magic sequences and software in CADs. He spreads his innovative ideas about magic under the name Taurus Silver, which is known throughout the magical community around the world. His innovative ideas has given the name "Taurus Silver" immense fame because he is called the genius engineer that advanced CAD software technology by ten years within one short year.

It has also been suggested that Tatsuya has been able to discover all 16 Cardinal Codes (Cardinal Codes are the name for the 16 fundamental Magic Sequences within the 'Cardinal Code Hypothesis'. This theory states that there are 16 fundamental Magic Sequences, from the Four Great Systems and Eight Major Types with the corresponding positive and negative poles. The theory states that any magic from the Four Great Systems can be recreated using various combinations.) Only one cardinal code has currently been publicised and other magic engineers have spent their lives trying to discover these cardinal codes. It can be noted that if Tatsuya does know all 16 he isn't interested in releasing them to the public for unspecified reasons. Tatsuya has stated that there are magics within the Four Great Systems that cannot be recreated using the Cardinal Codes. They do exist as building blocks, but not every magic can be recreated.

Discovered & Invented MagicsEdit

Related Article: Taurus Silver

 Sustained Gravity-Control Type Magic (Flying Type Magic) Edit
Selective Cast JammingEdit
Active Air MineEdit

Loop Cast System ➨ Reduced the variability of wireless models from 3 percent to less than 1 percent.

Gravity Control-Type Thermonuclear Fusion Reactor


Silver Horn Custom "Trident"Edit

A Specialized CAD based off the long-barreled Silver Series Silver Horn. It is inputted with most of Tatsuya's high level Decomposition magics. Tatsuya has used this CAD to cast high precision magic, decomposing needle-sized holes targeting his opponents' nerves and blood vessels to incapacitate and cause severe pain. It is customized specifically to activate three consecutive magics into one Magic Sequence. In the Battalion, "Trident" is the name given to this merciless triple Decomposition magic as well as the CAD that performs this. This is Tatsuya's favored instrument. This CAD has interchangeable cartridges loaded with different types of magic. 


Tatsuya using Trident

Third EyeEdit

A large caliber rifle CAD designed specifically for Tatsuya to use Strategic Level Decomposition Magic "Material Burst." It (Third Eye does not fire a physical projectile. Thus acceleration and movement magic sequences are not needed) is connected to a satellite to allow for precision targeting. With this CAD, Tatsuya was able to hit a 50mg drop of water from 80 km away. Due to its nature as the only weapon Material Burst can be used reliably and quickly with at long distance, the key card to the CAD case is kept by Major Kazama and the CAD is maintained by the engineer Captain Sanada. It is kept at the Independent Magic Equipped Battalion's headquarters. 

Ep 8 (17)

Third Eye

Mobile SuitEdit

Bulletproof, heat resistant, shock resistant, and also resistant to biological and chemical weapons and a simple motion supplement system. The Flying Device was also attached to the belt. When coupled with the shock resistant function, it can completely nullify the recoil when firing, so he can also fire in the air.


Mobile Suit


He is in possesion of the Magatama-Class Relic

He has also used a grenade canister, knives, guns, bikes and a car, showing his resourcefulness. 

Through Kokonoe Yakumo he has also learned how to use projectile weapons such as marbles, although it was noted that he needed to work on this.

He owns an electric motorcycle and a bulletproof car.

School ActivitiesEdit

Public Morals Committee - April 2095 ~ March 2096

Became almost as famous as the Chief herself due to his abilities. Had the highest number of incident encounters and therefore the most apprehensions among committee members. 

Student Council - April 2096 ~ present

His skills are so good that he has to leave early to allow other members to carry out their duties otherwise he would be running the Student Council alone. When he first joined the Student Council in 2095, he was in the Public Morals Committee but proceeding into the following year he was promoted to Vice President. 

Nine Schools Competition - AD2095 & AD2096

Was a part of the engineering team and was lauded for winning First Place for every event he was in charge in. Also participated in Monolith Code and was responsible for winning First Place and beating Ichijou Masaki in a head-on confrontation. 

National High School Magic Theory Thesis Competition - AD2095

Was a part of the Thesis writing team, aiding Suzune. He was responsible for the calibrations of the magic techniques used during the performance. 

People who know his identity and secretsEdit

Yotsuba Maya - knows he is Taurus Silver, the unregistered Japanese Strategic-Class Magician and his identity as the combat Magician "Mahesvara", member of the 101 Independent Magic-Equipped Battalion (military), and affiliated with the Yotsuba Clan. Also it is implied that she knows secrets about Tatsuya that have not yet been revealed in the series.

Hayama, as Maya's confidante, knows about him as well.

Some other members of the Yotsuba clan were mentioned to also know about Tatsuya being used not only as a tool but as a weapon, but it has not been mentioned who these are, and if the Yotsuba know if he is Silver or not. 

Sakurai Minami - When Tatsuya mentioned that he was Strategic to Minami, she did not seem surprised, so it can be assumed that she was told his secrets before being told to live with the Shiba siblings.

Shiba Miyuki - knows he is Taurus Silver, Japanese Strategic-Class Magician, part of the 101 Independent Magic-Equipped Battalion (military), and person from the Yotsuba Clan.

Officers of 101 Independent Magic-Equipped Battalion know he is Taurus Silver, a Japanese Strategic-Class Magician, a part of the 101 Independent Magic-Equipped Battalion (military), and a person from the Yotsuba Clan.

Mibu Yuuzou - Mibu Sayaka's father, heard things about Tatsuya from Major Kazama but we don't know the extent of what he knows.

Kudou Retsu - Knows that he is the son of Yotsuba Miya, and that he serves in the 101 Independent Magic-Equipped Battalion (military) as a Strategic Class Magician. Might know more about him than Tatsuya does.

People who partially know/suspect his identity or secretsEdit

Nakajou Azusa believes that he is Taurus Silver.

Saegusa Mayumi knows that he can use the magic "Regrowth" and saw him using "Decomposition," speculates that he is an Extra from the Yotsuba Clan, and knows that he is part of the military due to events in the Yokohama Disturbance arc.

Saegusa Koichi knows that he is a member of the 101 Independent Magic- Equipped Battalion and that the squad has links to the Yotsuba, suspects that he and Miyuki have some connection to the Yotsuba. He also might have some knowledge of his skills (Regrowth).

Chiba Erika knows that he is from the Yotsuba Clan, in the 101 Independent Magic-Equipped Battalion, and that he is under Major Kazama's order.

Chiba Naotsugu knows that he's a soldier in the 101 Independent Magic-Equipped Battalion, has connections with Major Kazama, and wields powerful magic for a high schooler.

Angelina Kudou Shields speculated that he is a Japanese Strategic-Class Magician and part of the military, but changed her mind and decided that he was a Mental Interference Illusionist. 

Raymond Clark knows that he is a Japanese Strategic-Class Magician and part of the military.

Shibata Mizuki knows that he can construct Magic Sequences without looking at the Activation Sequence (Flash Cast), is a member of the military, and may suspect that he is from the Ten Master Clans.

Saijou Leonhart speculates that he knows and can use all 16 Cardinal Codes, knows that he is a member of the 101 Independent Magic-Equipped Battalion (from Erika), and may suspect that he is from the Ten Master Clans.

Yoshida Mikihiko is told from Tatsuya that he can see and comprehend any magic design (Elemental Sight), knows that he is a member of the 101 Independent Magic-Equipped Battalion (from Erika), and may suspect that he is from the Ten Master Clans.

Juumonji Katsuto , Watanabe Mari , Ichihara Suzune , Chiyoda Kanon , Isori Kei , Mibu Sayaka , Kirihara Takeaki , Kitayama Shizuku , and Mitsui Honoka know that he is a member of the military, a Special Lieutenant, and may suspect that he is from the Ten Master Clans .

Hirakawa Chiaki suspected that he knows more than an average high school student. Might be tipped off by the people she was previously working with. Insisted that he should know that something was wrong with the CAD her sister calibrated even though Isori Kei or the others from engineering team for the Nine Schools Competition does not.


  • Shiba Tatsuya's personality, equipment, names, and abilities are heavily based on the god Shiva (Mahesvara). Shiva is one of the most revered and fascinating figures in Hindu mythology; he is the god who represents everything outside the established system, described as being both God and the Devil in one, and is heavily worshiped and feared. Shiva is held to be the Supreme God within Shaivism, one of the four largest sects within Hinduism.
  • Shiba Tatsuya's nickname [The Destroyer] or [God of Destruction] was given to him by Raymond Clark, one of the Seven Sages.
  • Shiba Tatsuya has admittedly called several female characters beautiful in different degrees in his thoughts, though he has never shown any trace of arousal or attraction, as well as embarrassment, regardless of the situations or how any female character present themselves to him.
  • Tatsuya's voice actor is Yuuichi Nakamura, the same person who had voiced Kyousuke Kousaka, the male protagonist of Ore no Imōto ga Konna ni Kawaii Wake ga Nai. Many fans have found this humorous due to the fact that Shiba Miyuki's voice actress is Saori Hayami, the same person who had voiced Ayase Aragaki of the same show. Ironically, Ayase would often criticize Kyousuke due to his sis-con personality.
  • Tatsuya and Miyuki appear in a commercial board at a building in Accel World Episode 6.
  • It was mentioned in the Summer Beach arc that Tatsuya's body was covered with scars all over except for his head.
  • It may be a coincidence that Tatsuya Shiba's initials are the same as Taurus Silver's.
  • Despite only being seventeen many people who personally know Tatsuya assume that he is older than his actual age; Fujibayashi being one of them.


  1. someone with Sister Complex
  2. a covert agent synonymous to ninjas

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