OVA
Description
Hikaruno Kagaribi is a character who appears in the Infinite Stratos 2: World Purge episode. She is 24 years old and holds the position of director at the second laboratory of the Kuramochi Technical Research Institute, where she works as a scientist and engineer specializing in Infinite Stratos software. Her background reveals that she was a high school classmate of both Chifuyu Orimura and Tabane Shinonono, though she makes a clear distinction that they were classmates and not friends.

In terms of appearance, Kagaribi is a woman with curly turquoise hair styled in short twintails, large blue eyes, and a voluptuous figure. Her manner of dress is highly unconventional, as she is often seen wearing a navy blue IS suit with a name tag on her chest, a lab coat, swimming goggles on her head, and cat-shaped slippers in her laboratory. When Ichika Orimura first meets her, she makes a memorable impression by appearing soaking wet, carrying a fishing spear and a freshwater fish.

Kagaribi possesses a personality that can best be described as eccentric and high-spirited, drawing comparisons to the similarly unconventional Tabane Shinonono. Her behavior is often forward and without regard for social norms, as she openly flirts with Ichika and has been known to grope him whenever she sees him, actions that lead both Ichika and her co-workers to label her as a pervert. Despite the age difference between them, she has invited Ichika to her room with clear sexual intentions, although she also suggests they could play Old Maid, showing a blend of genuine oddity and playful provocation. Those around her frequently find her exhausting due to her unrestrained nature.

Her primary motivation in the story is scientific and technological advancement. Kagaribi expresses genuine enjoyment in readjusting picky Infinite Stratos units and collecting new data from them, with a particular interest in making IS units use weapons they do not like. She uses the data acquired from maintaining the Byakushiki, Ichika’s unit, to drive forward her ambitious Next-Generation Mass-Production Model Project. This dedication to her work, combined with her eccentric methods, establishes her as a figure driven by curiosity and a passion for IS research.

Kagaribi serves a specific technical role in the narrative, appearing when Ichika is sent to the Kuramochi Research Center for repairs to his IS, Byakushiki, following an attack. She is responsible for overseeing this maintenance and takes the opportunity to collect valuable data from the process. Her key relationships are defined by her past and present. With Chifuyu Orimura and Tabane Shinonono, her connection is strictly that of a former classmate, and she does not consider them friends. Her interactions with Ichika are central to her screen time; she is intensely interested in him, not only as the younger brother of her former classmate but also as the sole male IS pilot, and she uses their professional meetings as opportunities for personal amusement and harassment.

As a character introduced late in a special episode, Kagaribi does not undergo significant development, but her consistent and unapologetic behavior defines her presence. She remains an eccentric and technically brilliant scientist whose motivations do not change from her first appearance. Her notable abilities lie entirely in her intellect and technical expertise. She is a highly intelligent scientist specializing in IS software, which qualifies her for her directorial position, and she is shown to be capable of assessing complex damage to a unit like Byakushiki. Her abilities are scientific and analytical rather than combat-oriented, and her unconventional research methods, including her habit of fishing, are as much a part of her character as her professional skills.