The Rank 1 Level 5 of Academy City, an esper with the ability to manipulate vectors in any direction. He can reflect or manipulate the direction and magnitude of attacks, boasting overwhelming power in combat. Though he was once cold and cruel, his encounter with Kamijo Touma and various incidents have gradually changed him into someone who protects others. He usually speaks in a rough and irritable manner, but he acts as a very special guardian toward Last Order. Age: 16 Height: 168cm Ability: Lv5 Accelerator (Vector Transformation) Side: Science

A magician of the English Puritan Church and a girl with the ability to memorize 103,000 grimoires. Based on her vast knowledge of magic, she can analyze enemy abilities and spells, and uses powerful magic in critical situations. She is usually bright, energetic, and curious, but she loves eating and has a massive appetite. She considers Kamijo Touma one of the people closest to her and lives with him. Age: 14 Height: 145cm Ability: Perfect Memory Side: Magic

The Rank 3 Level 5 of Academy City, known as the "Railgun." She freely manipulates electricity and specializes in powerful attacks using railguns and electromagnetic force. She is bright, energetic, and has a strong sense of justice, but she is also prideful, unable to be honest about her feelings, and highly competitive. She has feelings for Kamijo Touma and often acts like a tsundere or gets flustered when she meets him. Age: 14 Height: 162cm Ability: Lv5 Electromaster School: Tokiwadai Middle School Side: Science

Othinus is a Magic God; though cold and arrogant, she shows special trust and affection toward Kamijo Touma. She once possessed enough power to reshape the world at will, but after being defeated by Kamijo Touma, she lost her power and now lives with him in a palm-sized form. She is an advisor with excellent knowledge and judgment. While she usually teases or nags Touma, she helps him seriously during crises. Age: ??? Physical Age: 14 Height: 15cm Side: Magic

A member of Academy City's Judgment. Her ability is "Teleportation," allowing her to instantaneously move objects or herself to different locations. She is Misaka Mikoto's roommate in their dormitory. She loves Misaka Mikoto dearly and calls her "Onee-sama," though her obsession can be excessive. She speaks with a refined, ladylike tone and treats those around her politely, but she can be quite sly and makes perverted jokes when messing around. She calls Kamijo Touma an "ape" and views his presence near Misaka Mikoto with displeasure, though she acknowledges his skills. While she has a playful and perverted side, her sense of responsibility and justice as a member of Judgment is strong, and she acts cool-headedly in emergencies. She wears thigh belts under her skirt containing a total of 20 steel spikes, which she uses by teleporting them into opponents or throwing them. Age: 13 Height: 155cm Ability: Lv4 Teleportation School: Tokiwadai Middle School Side: Science