Folg is a young octopus girl who is red and white all over her body with black streaks. She has four blue eyes with no arms or legs which are replaced by tentacles located on her head. However, she does have a human torso and a semi-human head, which is somewhat bulbous like an octopus's head. The two extra eyes are also on the bulbous part. Her belly area has suction cups.

Her name is Folg

Emika is a bubbly, high-energy young girl, acting what she perceives as cute both actively and passively. Because of her general demeanor, Emika is very sweet and kind, and it's easy for her to take a liking to others. But this behavior is not for show, for she shows distinct empathy and care for others in tough situations. Her kindness stems toward serving as moral support for others when they need it.

(OC) Cute, bubbly, energetic

Hana Ichinose is a very shy and introverted girl about to start high school in the spring. After moving away from her parent’s house in the city due to unforeseen circumstances, she decides to live at an apartment managed by her cousin, Shion, called Temari Heights.

Slow Start, introverted, sweet

Akemi is beyond smart for a 12-year-old. She often tends to speak in excessively long and complicated sentences, though if asked, she can make her spoken sentences simpler. Though she appears emotionless, she is capable of displaying emotion when the time requires it. She is eager and always ready to help, even when she doesn't show it. She is capable of high school-level subjects such as algebra, and a few college subjects such as calculus. Math is not the only area of proficiency she has.

OC, Child prodigy, Respectful

Meimei is a young woman who is the Incarnation of Genbu, having the power of the Black Tortoise at hand. Despite her immaturity and personality of getting upset at the slightest inconveniences, she will lay down her life for friends and fellow guardians at will. She is always seen barefoot, sometimes with an anklet. She knows, Leilan, Karin, Sakuya, and Haku, the incarnations of Suzaku, Seiryuu, Kirin, and Byakko respectively. Their master, Fagan, is the incarnation of Kouryu.

Incarnation of Genbu, immature, spry

Compared to most other girls in the Judo Club, Midoriko is a little weirder and is referred to as being "avant-garde." She is also somewhat of a tsundere, taking a while before she starts to respect someone.

From Mou Ippon!

Not much is know about Ami, but she is confident and strong in her judo skills. Despite it, she can be rather shy around folks both new and old.

From Mou Ippon

Tsumugi is a pretty and popular extrovert. She also has a little sister named Kozue, who she loves as a little sister dearly.

Judo is basically Erika’s entire lifestyle. She lives her life becayse of Judo, and she’s eager to spar or fight opponents, taking it as her passion. She’s cold towards others, especially her opponents, but respect is not too hard to gain from her. Especially if she sees you as worthy.

Emma has a naturally upbeat personality. She is also the strongest judoka in the series, being able to go toe-to-toe against many opponents.

Michi's best friend. She is a talented girl with excellent grades and was ranked second in her junior high class. She's also a tutor for Michi, who isn't good at studying, and is one of the few people who can give sharp advice to her. Sanae's judo skills are mediocre in both physical strength and technique, but she's tenacious and good at pulling her opponents into pinning moves. However, her sense of responsibility makes her vulnerable to pressure.