Kuroko Shirai

Japanese Name 白井 黒子
Romaji Name Shirai Kuroko
Nicknames Onee-sama
Series Toaru Majutsu no Index, Toaru Kagaku no Railgun
Age 15
Weight Unknown
Height 152 cm
Date of Birth October 7
Blood Type B

Kuroko Shirai of “Toaru Majutsu no Index”: A Closer Look


Kuroko Shirai is a fascinating character known for her unique personality traits. She is portrayed as a dedicated and determined individual, always striving to maintain peace and order in Academy City as a member of Judgment, a special public committee group. Kuroko’s unwavering loyalty and admiration for her friend Mikoto Misaka, whom she affectionately refers to as “Onee-sama” (Big Sister), are at the core of her character. Despite her sometimes overbearing and possessive behavior toward Mikoto, Kuroko’s love and concern for her are genuine. Her willingness to sacrifice herself for Mikoto’s well-being demonstrates her deep devotion and selflessness.


Kuroko Shirai is a student at Tokiwadai Middle School and a protagonist in the series “Toaru Kagaku no Railgun”. She is also a supporting character in “Toaru Majutsu no Index”. As a level 4 Esper, she has the ability of instant teleportation, which allows her to move herself and objects within a certain weight and distance. Kuroko’s involvement in Judgment reflects her commitment to maintaining order and justice within Academy City. Her role in the series evolves from a supporting character to a significant presence, showing her growth and development throughout the storyline.


Kuroko Shirai is a visually striking character. She has short, straight black hair and bright blue eyes. She stands 152 cm tall and has a slender and agile physique. Kuroko is often seen wearing the Tokiwadai Middle School uniform, which consists of a white blouse, black skirt, and black stockings. Her appearance is further accentuated by her distinctive teleportation belt, which she wears around her leg and uses as a weapon when necessary.


Kuroko Shirai’s ability to teleport is a prominent feature of her character. By focusing her concentration, she can instantly transport herself and objects weighing less than a certain threshold to any location within a certain radius. This power allows her to navigate quickly and surprise her opponents in combat situations. Kuroko often uses a belt of needles to teleport herself and use it to immobilize or pin down her enemies. Her ability to teleport also contributes to her role as a member of the Judgment, as she can quickly respond to emergencies and help maintain peace in Academy City.


Kuroko Shirai is from the light novel series “Toaru Majutsu no Index” written by Kazuma Kamachi. She first appeared as a supporting character in the series and gained prominence as a main character in the spin-off manga series “Toaru Kagaku no Railgun”. Kuroko’s unique personality, abilities, and dynamic relationships with other characters have contributed to her popularity among fans of the franchise. Her growth and development throughout the series, as well as her unwavering devotion to her friends, make her a memorable and compelling character in the Toaru Majutsu no Index universe.

Kuroko Shirai – FAQ

Who is Kuroko Shirai in “Toaru Majutsu no Index”?

Kuroko Shirai is a fictional character in the light novel and anime series “Toaru Majutsu no Index”. She is a supporting character and a member of the Judgment Organization, a student-run security force in Academy City.

What are Kuroko Shirai’s skills?

Kuroko Shirai is an Esper with the ability to teleport, known as “Teleport”. She can instantly transport herself and objects within her line of sight to another location. Kuroko uses her ability primarily for combat and tactical purposes, often employing surprise attacks and strategic maneuvers.

What is Kuroko Shirai’s personality like?

Kuroko Shirai is known for her energetic and forceful personality. She is fiercely loyal to her friends and has a strong sense of justice. Despite her small stature, she has a bold and determined nature, often taking risks to protect others. Kuroko also has a tendency to express her affection for her crush, Mikoto Misaka, in a somewhat obsessive and possessive manner.

How does Kuroko Shirai contribute to the story?

Kuroko Shirai plays an important role in the “Toaru Majutsu no Index” series. As a member of the Judgment, she helps maintain order and investigate supernatural occurrences in Academy City. Kuroko’s ability to teleport and her close friendship with Mikoto Misaka often put her in dangerous situations where she can prove her resourcefulness and fighting skills.

What is the relationship between Kuroko Shirai and Mikoto Misaka?

Kuroko Shirai has a deep admiration and romantic attraction for Mikoto Misaka. She is often seen making advances towards Mikoto, much to the latter’s chagrin. Despite their contrasting personalities, Kuroko’s loyalty and devotion to Mikoto’s well-being is unwavering, and the two share a strong bond of friendship.

Are there any notable story arcs involving Kuroko Shirai?

Yes, Kuroko Shirai is prominently featured in several arcs throughout the “Toaru Majutsu no Index” series. Some notable arcs include the “Sisters Arc,” in which Kuroko helps uncover the dark secret behind the creation of the level 5 clones, and the “Daihasei Festival Arc,” in which she participates in various events while dealing with threats to the security of Academy City.