TV-Series
Description
Ayase Aragaki is Kirino Kousaka's best friend, classmate, and fellow fashion model. She possesses long dark blue hair, blue eyes, stands 166 cm tall, weighs 44 kg, and has measurements of 80/56/83. Born May 2nd, 1997 (14-15 during the series), she is a Taurus with blood type A. Her father serves as a Japanese senator and her mother as the president of the Parent-Teacher Association.

Outwardly polite, refined, and soft-spoken, Ayase embodies the model student. Yet, she harbors a fierce disdain for dishonesty and otaku culture, influenced by media linking otaku to criminal behavior. This leads her to condemn Kirino's anime and eroge hobbies as "disgusting," demanding Kirino choose between their friendship and her interests, creating a rift. Kyousuke Kousaka's intervention resolves the conflict, leading Ayase to gradually accept Kirino's hobbies while never embracing otaku culture herself.

Ayase displays tsundere and yandere traits, especially towards Kyousuke. An initial crush forms after their first meeting, viewing him as a caring brother. This turns hostile upon misinterpreting his relationship with Kirino, prompting threats of physical harm if he endangers her. Recognizing Kyousuke's genuine support for Kirino reignites Ayase's romantic feelings, culminating in a tearful confession. When rejected, she reacts violently: "You jerk! Onii-san, you jerk! Jerk! Jerk! Jerk! Why isn't it me?! You told me to marry you! You've sexually harassed me so many times! I'll kill you if you don't go out with me!" Despite this, she later kisses his cheek in gratitude.

In the PSP game's "Ayase If" route, her relationship with Kyousuke progresses to marriage and a daughter named Chitose. This route emphasizes her extreme jealousy and irrationality, featuring numerous "bad endings" where she murders Kyousuke with sharp objects or blunt force when feeling neglected or jealous. These violent impulses stem from her tendency to act emotionally, particularly concerning Kirino or romantic rivals.

Her dynamics with others remain complex: she manipulates friend Kanako Kurusu into cosplaying as Meruru for a contest to benefit Kirino, yet supports Kanako's idol aspirations despite disapproving of otaku culture. She admires Manami Tamura as her "goal as a woman," frequently seeking her advice. Interactions with Ruri Gokou (Kuroneko) begin antagonistically over differing views on Kirino and Kyousuke but later shift towards reconciliation.

Ayase shows partial growth in accepting others' interests but remains prone to jealousy and emotional volatility. This is seen in her eventual tolerance of Kirino's hobbies and her role in the "Ayase If" route, where she achieves a stable family life with Kyousuke and Chitose despite her earlier extremes.