; : :An athletic, cheerful, and energetic girl wishing to become the richest player. Her fighting type is "Infighter". Her technique, the "Vacuum Butt Cannon", can send anyone or anything far. She is sometimes a troublemaker and occasionally gets stuck in tough situations. Despite her initial loss, she learns all she can about keijo. She has dark blue eyes and wears a white ribbon tied in her long, dark blue hair. ; : :A former judo champion. She is one of the promising recruits and the fastest player. Her fighting type is "Outfighter". Despite her classmates' antics, she is a caring friend to her roommates and solves problems with them. She has dark blue eyes and a blue ribbon tied in her short, white hair. Her father disapproves of her decision to play keijo instead of judo, but accepts it when she wins a match in the East–West War event with a judo-inspired move. ; : :A shy resident of
Hiroshima with a dialect and self-conscious. Her ponytail moves when she is addressed or feeling emotional. Her right hand is sensitive and can copy her opponents' abilities by feeling up their buttocks, an ability she calls "Scanning Hand". In addition, she learns a strategy with special abilities from her friends as the situation demands in the East–West War. Her fighting style is "Counter". She has a brown eyes and a ponytail. ; : :A countryside village girl wishing to gain popularity and revitalize her village. She has the softest buttocks and breasts, absorbing attacks and reflecting them back. She is clumsy, absent-minded, and gets into comical situations. She and Kazane have unusual accents, which is why Nozomi misunderstands them at first. She has red eyes and hair tied in pigtails. ; : :An Elite Class Rank 3. She is a sports prodigy ever since childhood. Because of this, she makes friends upon joining keijo. She has a happy-go-lucky attitude when playing on the Land. Her attack strategy is to immobilize her opponents. Her attack style is "Infighter". She has short light purple hair and eyes. ; : :An Elite Class Rank 1 player and a lesbian. She openly flirts with and teases her classmates and opponents, ignoring their discomfort. For her "Breast Hypnosis" technique, she moves her breasts like a pendulum, immobilizing her opponents. The technique was later banned from school. Her fighting style is "Infighter". She has long blonde hair and light blue eyes. ; : :An Elite Class Rank 2. She initially claims to be the fastest "Outfighter" in Western Japan, which starts a rivalry between her and Sayaka. She is a former swimmer, with a large lung capacity and quick movement. Her favorite technique is the "Butt Gatling". Her nickname is "Rinrin". She has short blue hair and eyes. ; : :The main teacher in the West. She instructs the girls in ways related to keijo, such as hip toss with the beach ball and morning exercises. She has amazing speed throughout the series. She has a brown ponytail and eyes. ; : :One of the first keijo players and "prize queens", she was known as the "Alluring Siren" in the past. In the present, she is Nozomi's teacher. She is the first to recognize Nozomi's "Vacuum Butt Cannon" and knows the dangers of the attack, as she once used it herself. She is the owner of the UTMs (advanced swimsuits), before Nozomi joins the elite class in preparation for the East–West War. She has a rivalry with the keijo training school's head teacher in the East. She has orange hair and eyes, and a high weight compared to when she was a teenager. ; : :One of the other teachers in the West. She has long blonde hair and an unknown eye colour. ; :{{Voiced by|
Shizuka Ishigami{{cite tweet|number=793735581616345088|user=keijo_anime|script-title=ja:【告知】本日11/2発売のサンデー本誌にて、新キャラ情報を掲載！藤崎琴音：石上静香、吉田敦子：藤原夏海、白雪京子：浅野真澄、月下うさぎ：田中美海(敬称略)プレゼントもあるので要チェックや！ #競女 #keijo WB司 :An Elite Class Rank 4. She comes from a family of players and is naturally gifted for sports. Before Nozomi convinced her otherwise, she saw keijo as nothing more than work. She attacks while her back is turned and uses the vibrations on the Land to detect and predict her opponents' movements without looking. Her buttocks release an aura in the form of a dog and appear to hone in on her target. She listens to
boys' love stories on a headset and fantasizes about them, sometimes during keijo matches. Her fighting style is "Infighter". She has short blue hair and eyes. ==Media==