Ким е представена като инструктор по оръжията и помага на бандата на Кен в тренировките им~ Като естествено внася смут с начина си на обличане и на поведение~ По-късно тя се присъединява към Кен като мечоносец на бандата и обещава да му служи вярно, като изпълнява всяка негова заповед... <3 <3 <3 Да се надяваме да се появява по-честичко~

Medaka is an incredibly beautiful and talented first year student. She became Hakoniwa Academy's Student President as she managed to get 98% of the student body's support. One of her pledges during her campaign was to set up a suggestion box (which later became known as the Medaka Box), along with her childhood friend Zenkichi, goes out to solve any and all problems that comes through.
She is very confident and isn't ashamed of any part of her body at all. She is extremely intelligent and can understand all her subjects well. She has a positive outlook on everyone and everything surrounding her.
Medaka sees it as her job to enhance the national prestige.

The female protagonist of the story. Adachi is the class representative, and later, the student council president, who always hangs out with the delinquent Shinagawa. While she may appear to be the dutiful, respectful, and bespectacled class representative, there is more to her then meets the eye. In reality, she is a poor student, not very smart, absent-minded, oblivious and clueless in present situations, lacks common sense, and actually has great eyesight (her glasses do not provide any eye correction). She always forgets things easily like who's she's met before and stuff. Her strength and fighting skills left over from being a former delinquent overshadow these aspects. She lives with her weird grandmother.

Called the strongest maiden in Tenbi by Kodama Himegami and the Vice-President of the student council. She is the childhood friend of Takeru Ooyama and has romantic feelings for him often not caring when her body is revealed in front of him. She shares a room with Takeru Ooyama, Kodama Himegame and Inaho Kushiya.

She wields one of the eight (8) legendary maken, "Murakumo" meaning "Gathering Clouds". Her maken allows her to turn her element into photons around the blade. Murakumo's seal cannot be broken unless it reacts to opponents on par with its power. However, Haruko was able to unleash a little of the maken's power through her anger.