|Name (Kanji)||桐島 葵|
|Name (Romanji)||Kirishima Aoi|
|Date of Birth||January 6|
|Blood Type||B Type|
|Anime||Episode 1: Pursuit|
Aoi Kirishima (桐島 葵 Kirishima Aoi) is the older sister of Haruto Kirishima.
Aoi has long black hair that has bangs swept to the left side, brown eyes, a curvaceous physique and large breasts, just like the majority of the female cast.
Out of the two siblings, Aoi acts the least mature.
In Tokyo, Aoi lives in Ayano Fujikawa's dormitory where she is next door to Yamato Akitsuki. She is the one who shows Haruto a picture of when he first met Eba when they were children. She thinks that Haruto and Yuzuki make a better couple than with him and Nanami. She is a heavy smoker, extremely lazy, and leaves her room trashed, which usually results in Haruto doing most of her chores. Haruto lived in the dormitory with Aoi, until he got his own apartment.
Aoi came back home from college in Tokyo to student teach in order to get her teaching license.
- The name Aoi means "hollyhock, althea" (葵).
- Aoi's surname Kirishima means "paulownia" (桐) (kiri) and "island" (島) (shima).