|Name in Japanese||香椎 愛莉|
|Romaji Translation||Kashii Airi|
|Voice Actor (Japanese)||Rina Hidaka|
|Class Job||Bulletin Placement|
|Anime Debut||Here Comes an Elementary School Student! Yay! Yay! Yay!|
Airi Kashii (香椎 愛莉 Kashii Airi ) (also called Airin is the most quiet and shy girl of the five. Due to being too tall and well endowed for her age, she has an extreme complex about her height, which causes her to burst into tears whenever any mention of it is being made.
She happens to be the oldest girl in the group as well, being born in April. When younger, she fell from a boat into a lake and since then developed a mild case of aquaphobia that prevents her from swimming.
Maho recruits Airi into the basketball club, possibly due to her size, in a game where height is considered an advantage. However, Airi has an extreme height complex, preventing her from accepting her role as the team's "big man" center.
During the game against the boys team, Subaru has to trick her by telling her she is the small forward when she's actually the center.
In an effort to help Airi overcome her fear of deep water, the team, including Subaru, hold swimming lessons for her at the Misawa mansion, until Subaru's childhood friend, Aoi Ogiyama, found out about it.
Aoi challenges the girls to a basketball match to decide whether or not Subaru will keep coaching for the team. However, it turns out to be a secret test for Airi, which she passes when she successfully blocked Aoi's potential game winning layup. She forfeits the game in the girls' favor and teaches Airi swimming in Subaru's place. Airi later receives training from Aoi, who used to play center for her middle school team. She becomes very grateful to Aoi for helping her overcome her height complex and fully accept her role as her team's center.
She is an extremely tall and well-endowed girl for her age, and has a short brown hair.
Airi is very tall and well-endowed for her size, making her an ideal basketball player. As Tomoka states to Subaru, Airi can do so many things with her height. Her height complex, however, prevented her from playing to her full potential.
Airi is a formidable force under the rim as her height enables her to easily get rebounds, block shots, and shoot the ball from near the basket. This was used to the girls advantage against the boys team since the latter doesn't have any big players to match her.
After overcoming her height complex and training with Aoi, she became the most important piece of Keishin's "One Center, Four Shooter" offense. Airi would draw a double team to herself, freeing her teammates for an uncontested jump shot. Subaru states that the "One Center, Four Shooter" offense requires a strong center player like Airi.
|Keishin Girls Basketball Team|
|Tomoka Minato (4) - Maho Misawa (5) - Saki Nagatsuka (6) - Airi Kashii (7) - Hinata Hakamada (8) - Kagetsu Hakamada (9) - Mimi Balguerie (10) - Tsubaki Takenaka (11) - Hiiragi Takenaka (12) - Masami Fujii (13) - Subaru Hasegawa (head coach) - Aoi Ogiyama (assistant coach)|
|Keishin Boys Basketball Team|
|Natsuhi Takenaka (4) - 5 - 6 - 7 - Misao (8) - 9 - 10 - 11 - 13 - Ogasawara (coach)|
|Suzuridani Basketball Team|
|Miyu Aida (4) - 5 - 6 - 7 - 8 - 9 - 10 - 12 - 13 - Hatsue Nobidome (advisor) - Manaka Nobidome (coach)|
|Nashiba High School|
|Hatsunari Uehara - Aoi's friends (Zono & Shouji) - Subaru's friends|
|Mihoshi Takamura (aunt) - Nayu Hasegawa (mom) - Kagetsu Hakamada (sister)|
|Touko Hatano (nurse) - Hijiri Kuina (maid)|
|Light Novel - Manga - Anime|