This character, Ishi Haseo, is property of Ishimura_Elite.

This is the character featured in Sword Art Online: Blade Master. For the original character from Clashing Blades, see Ishi.

Ishi Haseo
Personal Info
Name Ishi Haseo
Kanji ハセオ イシ
Romanji Haseo Ishi
Birthday June 14, 2004
Age 18 (Start of SAO)

20 (End game)
40 (End War Online)

Gender Male
Height 5'9"
Weight 134 lbs
Eyes Yellow
Hair Black
Unusual Features Permanent scars on his right cheek and over his left eye

Scars on his right arm

Place of Residence Nagoya, Japan
Occupation Student
Family Aunt and Uncle

Asuka Shizuka - Wife
Yamato Haseo - Son

Player Profile
Display Name Ishi
Kanji イシ
Epithet Blade Master

Second Wandering Swordsman
White Wolf

VRMMORPGs Played Sword Art Online


Occupation Blade Master

Player Killer Killer

Affiliation None
Previous Affiliation Pendragon Court
Partner Misaki Akimi

Asuka Shizuka

Base of Operations Adeline's
Status Alive
Unique Skill Zero Shift
Unique Weapon Arondight


Voice Actor Mamoru Miyano
First Appearance Sword Art Online: Blade Master

Ishi Haseo is a player of Sword Art Online, and is the main character of Sword Art Online: Blade Master.


Ishi wears a black sleeveless shirt with black pants and black knee high boots with metal plating. He wears a white two tailed jacket with black trim and a gray fur-lined collar. He wears Arondight on his back, diagonally up to his left shoulder, and Gilgamesh on his left forearm.

He bears multiple scars on his right arm, in addition two the two scars on his face, which is why he tends to keep the arm covered by his jacket sleeve.

In real life, he wears the normal uniform of his high school, being a white collared shirt with a black blazer, with black slacks and black shoes.


Ishi's mother died during childbirth, and his father drank himself to death when he was 5. After that, he was taken in by his grandparents, who cared for him until they died when Ishi was 13 and 14. After that, Ishi inherited his grandparent's house and is now living off the money his wealthy aunt and uncle send him monthly. It was with this money that he was able to acquire a NerveGear.

Ishi's childhood was mostly spend in deep and near suicidal depression, with emotional and physical abuse from his peers. This is how he gained the scars on his right arm, as well as on his face, after he was cut multiple times by a sword one of his bullies possessed in a kenjutsu class he used to take. After the incident, Ishi began teaching himself in his own way of handling a blade, quickly developing his own personal style. In a short amount of time, he gained skill enough to directly confront the same bully with a blade of his own, managing to deliver a swift and powerful slash to the face and stomach, causing the bully to lose an eye as well as nearly be disemboweled. Ishi was able to claim self-defense with the incident and got away with it.

This incident was the catalyst that gave Ishi his insatiable bloodlust, which is the reason why he has repressed the memory. The years of childhood trauma has lead Ishi to have a natural distrust of people, and he has just a few friends, and almost no close friends because of this.


Ishi is usually cold and uncaring about most people, and tends to stick to himself on all things. He prefers to be alone in most situations, seeing other people as useless, and has gone so far as to say he hates other people. He rarely lets anyone get close to him as he tends to expect the worst in people. Despite this, he is not outright malicious to others.

Despite this, the years of emotional and physical abuse have indeed made Ishi a kind and caring person at heart to those who manage to get past his cold exterior. To this end, he can be very loyal, compassionate, and empathetic, despite what first impressions may tell. He is especially caring towards those who share similar pasts, and can empathize with these people instantly.

He is often left confused and uncertain about some situations because of this duality between his dislike of people and his knowledge of humanity's ability to be cruel to one another, and his sense of empathy and compassion telling him that people are worth more, exacerbated by the fact that he sees both of these aspects within himself. He is unsure of which side to believe.

He has shown to possess wisdom beyond his years due to his life experiences, and the lessons he's taken from all his hardships and trials.

Ishi's mental duality is sometimes problematic, and though for the most part he keeps himself under control, there are certain times when he can become irrational or impulsive, even confused and hesitant, being highly succeptible to his emotions. Misaki is the one who keeps this in check, able to moderate his mood and his conflicted beliefs and feelings.


Misaki Akimi - Misaki was Ishi's only childhood friend, and is also his closest friend, helping him through his depression during childhood. It is due to their close bond through the years that they formed a romantic relationship, and ended up sleeping with each other not long before SAO. Ishi cares for Misaki deeply, and has even thought about proposing to her in a few years. Misaki is a stabilizing force in his life.

Yamato Ovan - From their first encounter, Yamato and Ishi shared a strong rivalry. The two are master swordsmen, and the two test each other's skills often. The two, however, share a fateful bond. They are similar in many ways, and Yamato sees Ishi's potential to either break through his past and become what he couldn't, or fall in the same way he had. Yamato works to make sure the latter does not happen.

Asuka Shizuka - Ishi's second lover and eventual wife. The two met during the SAO incident, a few months in, when Ishi overheard her speaking of a dangerous mission she was going to undertake alone. Understanding how foolish it would be to go alone, Ishi reluctantly tailed her, coming to her rescue during an encounter with several dangerous enemies. He would chastize her harshly for being so reckless, pointing out her lack of skill with a blade and making a note to her that she wouldn't be long for this world if she continued being as foolish and underprepared as she was then. Instead of being entirely discouraged, Asuka instead tried to befriend Ishi and learn more about him, sensing his good heart but also the pain he was suffering. After Misaki's death, Asuka would be there for Ishi, the two eventually becoming romantically involved shortly before SAO's end. Ishi would propose to Asuka not long after meeting her in real life after the SAO incident. The two would have a son two years later, Yamato Haseo.


Ishi is a naturally skilled swordsman, utilizing his single-handed blade, Arondight, and his clawed gauntlet, Gilgamesh, to an inhuman level of ability. He is near undefeatable in close quarters, as his special self-taught fighting style is both deadly and unpredictable, with varying techniques that Ishi can switch between mid-combat to keep an enemy on their toes. His unique skill, Zero Shift, allows him to achieve ultimate speed and agility in combat, allowing him to evade and close distance near instantaneously in a single step. Ishi possesses no other combat skills, refusing to learn any others and prefering to use his own self-taught techniques unassisted.

Ishi employs an unorthodox reverse grip with Arondight, providing extremely quick and rapid strikes to bring his enemies down. Though he commonly switches back and forth between frontward and reverse grip with his blade mid-combat, he mainly favors a reverse grip in combat. He also incorporates an unusual position of his sword on his back, being diagonally up to his left shoulder instead of his right, requiring him to reach his arm across his body in order to grab his sword, but also allowing for an immediate powerful first strike while unsheathing the blade. Ishi is well known for his frightening tendency to immediately appear in an enemy's blind spot, being able to maneuver his way into any guard from any angle and strike even from awkward positions with pinpoint precision.

Even outside the game, Ishi was naturally talented, developing his skills over years into his own natural fighting style that doesn't resemble any other kind of art in the world, making the unorthodox technique quite lethal to the unprepared.

Due to his hardships during childhood, as well as his uncaring personality, Ishi is abnormally resistant to pain, being able to shrug off damage that would cripple a normal person. He has claimed that he can indeed feel the pain as anyone else would, but that he just doesn't care to acknowledge it.


  • Though spiteful towards a lot of things, his mood lightens significantly when around cats.