The advisor of the Security Council and also the village's strongest telekinesis user. He wears a hooded mask and has double irises in each eye, capable of detecting and dispelling attacks in all directions. He also displays calmness and confidence in retaliation against the Monster Rats attack on the village but is still powerless against a Fiend. (Source: Wikipedia)
Chairman of the Board of Education. She is the most anxious and cautious among the council representatives. (Source: Wikipedia)
She is a second year high school student at Tokioka Academy and also the Vice President of the school's student council. At school she's conservative, pure and uptight, and she enforces discipline and upholds public morals around campus. However, known only to Okuma and later on with Otome, Kosuri and Hyouka, she also has an alter ego called "The Blue in the Snow Field," a foul mouth exhibitionist who walks around in public not wearing much more than a pair of panties on her head and a smock to cover her naked body. She incites obscene acts of terrorism against the society who strictly upholds the public moral where dirty jokes and toilet humor have been outlawed. In the anime she is called "Blue Snow."
She is an art prodigy and a senior student at Tokioka academy. Though, she renown for her artistry, she secretly has an insatiable desire of making lewd drawings that concerns all forms of lasciviousness. She was later on recruited by Kajo Ayame to join her group where she makes lewd drawings and spreads around campus. Because the PMs she wears detects any lewd movement her hands make, she instead taught herself to draw by holding tools with her mouth to avoid her PM's sensors. Has an unrequited crush on Anna. (Source: Wikipedia)
Maria is Saki's best friend and a beautiful girl with pale, white skin and blazing red hair. She's very strong willed, and commands the weak, quiet Mamoru, but in times of need she devotes herself to protecting him. On the other hand, she does show a girlish fear of scary stories too. Later, she starts dating Saki. In chapter 21, it is revealed that she had a child with Mamoru 10 years ago, later they were killed by Yakomaru. (Source: Crunchyroll)
Squealer is a queerat, an intelligent species that work as servants to humans. Like others of his species, he is small, has the appearance of a giant rat, but is very sly and astute. He is the representative of the Robber Fly, a small colony of queerats. His ideals are freedom, equality between human and queerats and the end of the monarchy system inside of the queerats colonies, where the queen is the absolute ruler. He helps Saki and her friends to escape from the wild queerats that were pursuing them. Later, he shelters Maria and Mamoru from the tainted cats in his colony. But his ultimate goal was to obtain a human child from Maria and Mamoru, which when matured will gain the ability to use cantus. With the child Squealer plans to start a revolution against the humans. Once Squealer obtained the child, he had Maria and Mamoru killed and their remains were returned to the village to quell the suspicion of the humans. By this time, Squealer is the leader of an alliance composed of equality seeking queerats and the supreme commander of the army in the alliance. Squealer then secretly raised the child to fulfil his ideals of conquest and dominance over the humans. After around 10 years, he uses the child in combination with his army of queerats, in an attempt to wipe out the human race.