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- Dwindling Party: The sixth member of their group, Reiko Amano, is offed in the first episode, except their memories are wiped so they forget. Shun turns into a karma demon and is swallowed up by the earth. A few episodes later, Mamoru leaves the village and Maria goes with him, planning to start a family in the wilderness. They are confirmed dead in episode 18. By the third story arc, Saki and Satoru are the only two of the friends remaining.
- Everyone Is Bi: Except for Mamoru. It's a cultural thing.
- Innocence Lost: The first story arc completely destroys their view of the world.
- Playing with Syringes: A psychological version. They were engineered without an innate fear of the unknown in an attempt to create potential leaders for Kamisu 66. The results were...hit and miss.
- Psychic Powers: All of them have the power of telekinesis.
- Psychic Children: The power of telekinesis manifests itself before they hit puberty, resulting in this trope.
- True Companions: All of them care fiercely and deeply about each other, and their Dwindling Party status hits the survivors hard.
Voiced by: Risa Taneda (younger, main story) and Aya Endo (older, narrator) (Japanese), Emily Neves (English)The protagonist and narrator of the story, Saki is a young girl living in the town of Kamisu 66, a cordoned village in a future where humankind has developed psychokinetic abilities. These powers manifest during mid adolescence around twelve years of age. Her powers were late to develop, leading her to believe that she would fall victim to the 'neko damashi', giant felines that are said to abduct children that are not blessed with such power before they mature. The story picks up as she enters Zenjin academy and joins her friends.
- Action Girl: Not surprising with the amount of danger she finds herself in, coupled with her PK. Saki does an amazing job of defending herself.
- Action Survivor: Saki can handle herself in a fight, but this is largely only due to her rather average PK ability than any outstanding ability to fight.
- The Ageless: Tomiko gives her a hint about how to become this after learning that she's good at fixing pots. Whether she does so is not shown.
- Babies Ever After: One of the final scenes is Satoru embracing a pregnant Saki.
- Bi the Way: She's in love with Shun but she's also in a relationship with Maria until they're 14. It's crystal clear that she prioritizes her feelings for Shun over her girlfriend though. Their relationship ended in Episode 14 after Shun's death and Maria's decision to leave the village with Mamoru. She marries Satoru in the end.
- Cannot Spit It Out: For Shun, because he's in a relationship with Satoru and she's in one with Maria. He understands well enough, though.
- Childhood Friends: With everyone, but the one she most clearly has this relationship with is Satoru. Although the anime downplayed their relationship a lot, Saki and Satoru have the deepest bond in the novel, and the anime does at least make clear they are the central pair of the story.
- Childhood Friend Romance: With Shun and Maria but she ultimately ends up with Satoru.
- Coitus Ensues: She does "it" off-screen with Satoru after breaking down in Episode 16.
- Cool Shades: Hey, it comes with being the head of her department.
- Despair Event Horizon: Barely averted with Shun's death. His death still shakes her up, but the Ethics Committee has wiped memories of his identity from everyone in the village.
- Earn Your Happy Ending: After everything she goes through over the course of the series, she gets to start a family with Satoru.
- Expository Hairstyle Change: Starts out with short hair; it grows out to shoulder-length when she's 14, and by the time she's 26, she wears it in a long sidetail. When she's 36, she cuts it short again..
- First-Person Smartass: On occasion, in the novels.Saki: At this time, I admired Satoru for his oratory skills. If there were ever a job for making scary stories, he would be the first to be picked for it. Though of course, I canít think of any society that would have such a dumb job.
- Fragile Flower: Subverted. Saki can initially appear as this - she becomes emotional very easily, lacking the wisdom of Shun or the badass nature of Satoru. This causes her to often seem weak of character. However, she is the only member of Group One to suffer no major personality changes in response to what they're told by the False Minoshiro, showing she handles trauma remarkably well.
- Friendly Enemy: A one-sided example towards Squealer, after coming to understand him and his motivations. She speaks fondly of the first time they met, including the time where he probably betrayed them to Kiroumaru.
- Happily Married: She and Satoru clearly have a happy, loving relationship at the end.
- Heroic Self-Deprecation: Doesn't think too highly of herself. In fact, after Tomiko reveals to her that she intends for Saki to inherit her position as head of the Ethics Committee one day, a very, very high position of prestige and power in their society, Saki could barely believe her. In the novels, her low view of herself borders on Black Comedy.Saki: People often complimented my eyes. Probably because there was nothing else to compliment. I also often heard them say that thereís light in them, but then again, people who have no light in their eyes are usually dead.
- Heroic Willpower: She takes being a Plucky Girl to practically the level of a superpower, shrugging off existential horrors with barely a flicker. This is why she's tapped to lead the Ethics Committee: because she can face the trauma of doing what must be done without a nervous breakdown, which in this setting would be tantamount to The Corruption.
- The Heroine: The protagonist and viewpoint character, who grows stronger and stronger and eventually ends up aiding in saving the human race.
- Living Emotional Crutch: She and Satoru are this towards each other by the third part of the story, depending on each other emotionally since they're the only two of the friends left.
- Meaningful Name: The ki in "Saki" can show age order, specifically referring to the youngest child. Saki is the youngest of her parents children, only her sister has been made an Unperson and she can no longer remember her face.
- Mercy Kill: Eventually grants this to Squealer/Yakomaru, after the Board of Ethics subjects him to a Fate Worse Than Death and he's reduced to a shapeless blob that can only feel pain.
- My God, What Have I Done?: She gets this reaction in the finale after she learns who the Bakenezumi really are.
- The Narrator: An older Saki narrates the story.
- Noble Bigot: Saki is a very kind person, but she still follows the belief that Bakenezumi are animals. Interestingly, she grows colder to them as she ages. At the start of the story, she treats them humanely and even rescues a drowning Squnk. By the time she is 26 she largely treats them as animals and is apathetic towards them, before going full circle due to her experiences with Kiroumaru and Squealer.
- Nom de Mom: Her father's last name is Sugiura while Watanabe is her mother's last name.
- Official Couple: With Satoru. They have sex in Episode 16 and stay together throughout the third story arc, as technically they are considered a couple since the pairing for schoolwork. Their romantic relationship is heavily cut down in the anime by being substituted with Saki pining over Maria to an extent that wasn't in the original novel. In the original, their relationship is greatly explored and developed. Satoru and Saki do marry at the end of the anime and have a child though.
- Plucky Girl: Stated by several characters to be her best trait - no matter how many bad things she endures or how many hard truths she uncovers, she always manages to bounce back.
- Properly Paranoid: Her decision of joining the Exospecies Committee as her career choice when there were other more lucrative jobs for her in the village out there in the third arc was fueled by her constant suspicions and wariness toward the Bakenezumi and their actions, especially Squealer/Yakoumaru, who she suspects is planning something against the humans one day based on his strange actions and her experiences with him while growing up during the first two arcs. She was right.
- She Is All Grown Up: Saki grows to be a beautiful woman in the third arc.
- Strong Family Resemblance: She looks liker her mother but she has the same hair and eye color as her father.
- Tsundere: To Satoru, briefly, in the third act. They had a fight and had been avoiding each other, and Saki acts colder than she is really feeling.
- Unwitting Instigator of Doom: By letting Maria and Mamoru run away from the village, Saki essentially set up the conditions for the birth in wilderness of the Akki and Yakomaru's procurement of a living nuke with free, untampered power.
- Also, saving Squealer from getting eaten by the Robber Fly queen didn't turn out to be the wisest of decisions come Episode 18.
- Vitriolic Best Buds: With Satoru, mainly as children, they have petty arguments and they tease each other, yet they are really good friends and would do anything for the other. As they grow up they start bickering less.
- Will They or Won't They?: With Shun. They don't, albeit due to Shun's transformation into a Gouma rather than a loss of interest.
- Your Cheating Heart: She openly pines after Shun and Ryou while in a relationship with Maria. Considering the society of the villages this is probably normal.
Voiced by: Kanako Toujou (child), Yuuki Kaji (teenager) (and as an adult) (Japanese), Greg Ayres (English)Saki's childhood friend. Loud and boisterous, Satoru is as quick with his powers as he is with his tongue. He enjoys nothing more than to stir up his friends, especially Saki from which he takes particular enjoyment. Satoru is also very smart and loyal to his friends. He matures as the story unfolds.
- Adorkable: As a child, Satoru was adorable, but also very loud and obnoxious towards his friends.ll
- Badass Adorable: As a 12 year old boy, he's able to take out armies of hostile Bakenezumi once his PK powers are restored.
- Badass Bookworm: He does very well at school and he is quite knowledgeable. Particularly at the age of 26 as he works as a geneticist.
- Bi the Way: Has been in a relationship with Shun. It ended painfully for Satoru as Shun broke up with him and cut him off along with his other friends when he realized he was starting to turn into a gouma. He eventually marries Saki.
- Blood Knight: When up against the enemy Bakenezumi, Satoru begins displaying bloodthirsty tendencies towards them and when given the chance, kills them off as cruelly and painfully as possible. Saki internally notes that this trait of Satoru's is what scares her about him the most and she would always try to calm him down before he could go any further.
- Cheerful Child: He's the most upbeat and boisterous of the group, although he matures into someone more serious as he grows older.
- Childhood Friends: With Saki, Shun and Maria. He most clearly has this relationship with Saki, just like her section above stated, the anime downplayed their relationship considerably.
- Class Clown: Satoru is often loud and obnoxious, sometimes to the annoyance of Saki, in an attempt to get attention. He grows out of this when he grows older.
- Coitus Ensues: He has sex with Saki off-screen in episode 16.
- Consummate Liar: When he wants to, he can be very silver-tongued. Just ask Ryou, who he easily tricked into going away when Group One had to sneak beyond the barrier.
- Deadpan Snarker: He gradually gains slight shades of this as he grows older and loses most of his gadfly tendencies.
- Deuteragonist: The second focal character after Saki.
- Earn Your Happy Ending: He gets to start a family with Saki, with the promise that their child will live in a better world.
- Expository Hairstyle Change: Starts out with short hair, by the time he is a teen he wears it a bit longer and at 26 he has let it grown even longer and has Peek-a-Bangs. When he is 36 he cuts it short again, just like Saki.
- The Gadfly: He likes pushing Saki's buttons, who usually falls for it. He mostly grows out of it as he gets older, though he will still occasionally mess with Saki, such as stealing her drink.
- He Is All Grown Up: Like Saki, Satoru grows into a very handsome man in the third arc.
- Heroic Sacrifice: Almost. He was willing to get himself killed along with the Akki by using the psycho-buster, luckily Saki stops him.
- Hot Scientist: In the third story arc, Satoru works in the town's science department.
- Kids Are Cruel: Satoru is normally warm and friendly, but he got rather bloodthirsty while fighting the Earth Spider colony, to the point it made Saki uncomfortable.
- Living Emotional Crutch: He and Saki are this towards each other by the third part, as they're the only two left in their group of friends.
- The Not-Love Interest: For Saki, despite episodes 5-7 focusing on the two of them — although they care deeply about and are protective of each other, they're not each other's love interest. Subverted in the third part of the story and in the novel when they're the only two of the friends remaining. They marry at the end and have a child.
- Official Couple: With Saki. They have sex in Episode 16 and stay together throughout the third story arc, as technically they are considered a couple since the pairing for schoolwork. Their romantic relationship is heavily cut down in the anime by being substituted with Saki pining over Maria to an extent that wasn't in the original novels. In the original, their relationship is actually greatly explored and developed. Satoru and Saki do marry at the end of the anime and have a child though.
- Overshadowed by Awesome: Saki says that because he is always with Shun, Satoru's talents are overlooked in comparison to Shun's.
- The Prankster: Loves playing tricks, though he stops as he grows up.
- Smarter Than You Look: He looks like a typical kid his age but he's very level-headed and effective in dangerous situations.
- The Stoic: As an adult, in complete contrast to his younger braggart tendencies.
- The Strategist: Able to concoct a reasonable explanation for events, and capable of calmly formulating strategies under stressful situations.
- Vitriolic Best Buds: With Saki, mainly as children, they have petty arguments and they tease each other, yet they are really good friends and would do anything for the other. As they grow up they start bickering less.
- Absurdly Youthful Mother: Her and Mamoru's child is at least 9 when Saki is 26. Do the math.
- Apocalypse Maiden: Maria's own birth was very difficult and she almost died. If she hadn't lived she wouldn't have given birth to a walking apocalypse who kills everyone and destroys everything s/he sees.
- Because You Can Cope: Ultimately decides to be with Mamoru despite still loving Saki deeply because Mamoru won't survive in the wilderness without her but Saki can survive the village.
- Bishoujo: She's considered pretty and drawn as such.
- Bi the Way: She has a relationship with Saki until they're 14. It ended in Episode 14 when she chooses to be with Mamoru and leave the village.
- But Not Too Foreign: Saki was told by Satoru that since red hair isn't an Asian trait, Maria's ancestors must have come from a distant country many generations ago.
- Childhood Friends: With Saki, Satoru and Shun.
- Childhood Friend Romance: With Saki. It ends amicably in episode 14.
- Elegant Gothic Lolita: Her winter headband is reminiscent of this style.
- Flight: While any psychokinetic can fly, she's the first of the group to master it and the most adept.
- Hime Cut
- Longhair Is Feminine: She's a girly girl who wears her hair to her waist.
- The Lost Lenore: In the anime, Saki never quite gets over her death.
- Power Floats: Surprisingly, the only main character to use her abilities for this.
- Put On The Bus: She ultimately departs Kamisu 66 with Mamoru, leaving behind a final letter for Saki to read. She is never seen again.
- Bus Crash: Tomiko Asahina confirms her and Mamoru dead in Episode 18. It's revealed that Yakomaru found little reason to keep her alive after she gave birth.
- Team Mom: Has a mature, motherly demeanor. She is also very protective of Mamoru.
- Teen Pregnancy: She has a child shortly after she leaves the village.
- Tsundere: In the manga only. She had a crasser personality, and often berates Mamoru even though she loves him. In the omake at the end depicting them in heaven, she was also this to her son, saying that she has no feelings for a child she never raised, but when he approached her, she hugged him dearly.
- Unwitting Instigator of Doom: The birth and growth of the Akki is partly due to her decision to run off and start a family with Mamoru in the wilderness, away from the village and any access to the hypnosis and conditioning imposed on children. At least, Mamoru on his own wouldn't be able to produce a child.
- Weakness Turns Her On: Seems to explain her attraction to Mamoru.
- You Have Outlived Your Usefulness: After Maria gives birth to a child during the timeskip, Yakomaru finds no more need to keep her and Mamoru alive.
- Zettai Ryouiki: Wears thigh-high stockings with her school uniform.
- Dude Looks Like a Lady: Some viewers mistakenly believed that he was a girl when he was 12.
- Break the Cutie: Understandably so; Mamoru doesn't take the prospect of the fact that he may actually live in a Crapsaccharine World lightly. In fact, the others agree not to even talk about the odd occurrences in the village around him.
- But Not Too Foreign: Just like Maria's entry. Mamoru's mother was a redhead, so their ancestors must have come from another country.
- Can't Spit It Out: His feelings for Maria, although it's not quite necessary. She's very aware of it.
- Everyone Can See It: He's not very subtle with them.
- The Cutie: He's kind, gentle, and very sensitive.
- Fragile Flower: Part of his overall sensitivity.
- Heroes Want Redheads: He is obviously in love with Maria.
- Like Parent, Like Spouse: Mamoru is attracted to Maria, a redhead who has a motherly demeanor... Mamoru's mother also had red hair.
- Missing Mom: His mother died of typhoid fever when he was young.
- Nervous Wreck: Mamoru becomes distressed very easily, to the point where he is unable to handle learning the truth about their society.
- Nice Guy: Despite being a Nervous Wreck, Mamoru is very kind and selfless, especially with regard to Maria. This is why Maria wants to stay with him in Episode 14.
- Non-Action Guy: Unlike Satoru and Shun, Mamoru is more cowardly and pacifistic, and is not much use in a fight.
- Put On The Bus: The threats towards his life in Kamisu 66 forces him and Maria to leave the village for good. He never sees Satoru nor Saki ever again.
- Bus Crash: Those "bakenezumi bones" Yakomaru promised to lay out to cover Mamoru's and Maria's escape? It's actually from their corpses, as Tomiko proves through DNA analysis.
- Shrinking Violet: Very demure, soft-spoken, and quiet. Even as he pines for her, Maria teases him mercilessly by flaunting her relationship with Saki in his face. Maria does, however, care for Mamoru very deeply despite this.
- Single-Target Sexuality: Towards Maria. Notable in a world where Everyone Is Bi. In the novels it's mentioned that he was approached by several "cute guys" and he always rejected them.
- The Quiet One: He doesn't talk much.
- Unwitting Instigator of Doom: Really all Squealer/Yakomaru's fault, running away from the village and fathering a bloodthirsty Akki with Maria.
- Will They or Won't They?: With Maria. They Do.
- And the result is horrendous.
- You Have Outlived Your Usefulness: After Mamoru fathers a child in the timeskip, Yakomaru finds no more need to keep him and Maria alive. By the end of the timeskip, the two's remains were given to the Ethics Committee (as part of Yakomaru's plan) and Yakomaru grooms their child to become his ultimate weapon.
Voiced by: Mai Toudou (child), Ayumu Murase (teenager) (Japanese), Clint Bickham (English)Top student of his class, Shun is a calm and collected individual who often takes middle ground when conflict breaks out.
- The Ace: Shun is very talented with PK use, and is considered prodigious.
- Bi the Way: At fourteen, he and Satoru are involved. However, despite his and Satoru's intimacy, his heart has always belonged to Saki.
- Blue Oni: To Satoru's Red Oni.
- Child Prodigy: Even at the age of twelve, Shun was adept at controlling his power.
- Childhood Friends: With Satoru, Saki and Maria.
- Childhood Friend Romance: At age 14 he dates Satoru, but Shun notices that he is becoming a Gouma and breaks up with him. Also the one he has always loved is Saki, and dies telling her so.
- Death of the Hypotenuse: He is loved by both Satoru and Saki, he was dating the former and dies telling the latter that he's always loved her.
- Despair Event Horizon: Crosses it when he transforms into a Gouma and accidentally kills his parents as well as annihilates his entire village.
- Dissonant Serenity: In the midst of the strange, otherworldly environment warped by his PK, and faced with his growing mental instability, inevitable death, and the fact that his beloved was in range of his chaotic, uncontrollable PK, Shun surprisingly manages to keep his voice relatively calm as he speaks to Saki.
- Dying Declaration of Love: Towards Saki.
- Expository Hairstyle Change: As a child he wears his hair short, when he grows up he lets it grow longer.
- First Love: Saki and Satoru both loved him very much when they were younger.
- I Cannot Self-Terminate: Gouma!Shun cannot be killed via poison, since they're either neutralized or dissolved by his power they enter his body. The adults send some Fujoneko after him but they're also easily terminated. Eventually, he allows himself to be swallowed by the earth and perishes.
- The Kirk: He often mediates between the stronger personalities in their friend group.
- The Leader: He is unanimously selected the leader of their group, no question whatsoever.
- The Lost Lenore: Despite the Ethics Committee's efforts to wipe him from their memory, his death has a lasting effect on both Satoru and Saki (although he also has to contend with Maria with regards to the latter).
- Nice Guy: Very kind and patient, especially in regards to Saki. He cares for her very much.
- Oh, Crap!: Kaburagi Shisei, an extremely powerful PK user, has this reaction when he senses Shun's unstable power, and promptly flees the class.
- Power Incontinence/Superpower Meltdown: Unable to control his psychic powers, he turns into a demon and is swallowed by the earth.
- The Smart Guy: The top of his class, and often able to compose a logical answer to most things. He even managed to gain some semblance of understanding of the human psyche, particularly in regards to the Hashimoto-Appelbaum syndrome that was turning him into a Karmic Demon. Even from beyond the grave, he figures out the true nature of Yakomaru's weapon.
- Spirit Advisor: Of sorts to Saki in the third story arc. He's the one that figures out that Yakomaru's Akki is not actually an Akki.
- Unperson: After his death, all memories of him are wiped or replaced.
- Used to Be More Social: Due to turning into a karma demon, he cuts ties with his closest friends.
- White Mask of Doom: After his transformation into a karma demon.
- Will They or Won't They?: With Saki. They don't, albeit due to his transformation into a Gouma rather than a loss of interest.
- Forgotten Childhood Friend: When she dies everyone forgets about her. The anime fails to show it but in the novels Reiko, along with Ryou, knew and interacted with Saki, Satoru, Maria and Shun when they were in elementary school, even though she went to another school. The begining of the first episode shows all of them playing a game when they were younger.
- Sacrificial Lamb: Offed in two episodes to show the brutality of the village elders.
- Shipper on Deck: The manga omake reveal her (ghost) to be a huge one for Saki and Shun, to the point where her reaction to Saki rejecting Ryo is a gigantic "FUCK YEAH!"
- Unperson: After her disappearance, the adults in the village wipe her from official records and her friends' memories.
- We Hardly Knew Ye: We don't get to know much about her.
- Youthful Freckles: Had them.
Voiced by: Yoshiko Sakakibara (Japanese), Allison Sumrall (English)Satoru's grandmother, having survived an Akki attack on the hospital she worked for, Tomiko has since rose to the head of the Ethics Committee. As the village's leader, it is up to her to maintain status quo and to prevent future attacks by Akkis and Goumas.
- Big Good: Serves as this in the Third Arc, even though she's been in power for much longer.
- Dropped A Bridge On Her: She's injured during Yakomaru's attack, and is abandoned at her own request. That's the last we see of her. She was probably insta-killed by the Akki, like so many others, but we don't really know.
- Elderly Immortal: Looks 67 (according to Saki), actually 267 when we meet her.
- Genre Savvy: She, Saki, and Satoru were the only ones who were suspicious of Yakomaru's intentions.
- Grandma, What Massive Hotness You Have!: You may forget it by looking at her, but she is Satoru's grandmother...
- Iron Lady: The pragmatic, ruthless, and competent leader of the village.
- I Will Only Slow You Down: With no strength left in her as a result of her injuries, she accepts the inevitability of Yakomaru attacking the hospital. After giving her final orders to Niimi and Saki, Tomiko calmly rests in her hospital bed and awaits her fate.
- The Mentor: She serves as one for Saki during the second and third arcs.
- Never Mess with Granny: Really... never mess with this woman. Despite being old, she's still a very competent fighter.
- Obi-Wan Moment: Realizing she no longer has the strength to face Yakomaru and his akki, she gives Saki her position and calmly requests a grieving Niimi (her assistant) to leave her behind.
- Passing the Torch: Foreshadowed in the second story arc. She gives her position as the head of the Ethics Committee to Saki in Episode 20 after receiving serious injuries.
- Proper Lady: Always respectful, behaving with the right manners, and wearing delicate and beautiful kimonos.
- Properly Paranoid: About Akkis and Goumas returning to wreak havoc on Kamisu 66. After all, she barely avoided being killed by K when she worked as a nurse.
- Really 700 Years Old / Older Than They Look: She's 267 years old. Apparently, this is a result of being able to regenerate her telomeres.note
- Reasonable Authority Figure: She's willing to hear Saki and Satoru out, and is also willing to take measures to protect the village at their behest.
- Silk Hiding Steel: She's a soft-spoken, steel-spined old lady.
- The Social Darwinist: As Tomiko used to say, "A chain is only as strong as its weakest link."
- This Means War!: This was her reaction to Yakomaru's devastating attack on Kamisu 66 during the Summer Festival.
- Unwitting Instigator of Doom: Her experiment to allow Group One to have free will untampered by the adults's conditioning in order to rear leaders for the village did result in the making of two decent leadership figures in the form of Saki and Satoru, but it also led to the tragedy of Mamoru and Maria running away when they rebelled against the Board of Education's authority to cull children, and ultimately the birth of the Akki.
- Well-Intentioned Extremist: Is willing to do whatever it takes to protect Kamisu 66. However, she has criticized the Education Committee for being too paranoid and hasty when it comes to culling children, though she sympathizes with them.
- Asskicking Equals Authority: Hands down the series' most powerful character, and thus one of the town leaders.
- Awesomeness by Analysis: He can tell from the status of the arrows fired by Giant Hornet colony's bakenezumi that the Robber Fly colony has a human under their command.
- Blindfolded Vision: He can walk around normally despite wearing a blindfold. Justified due to his Psychic Powers.
- Charles Atlas Superpower: Even among humans, he's recognized as the strongest and his power is rumoured to have the capacity to split the earth in half.
- Cool Shades: Whatever you call the band he usually puts over his eyes. Under it, he turns out to have...
- Cruel and Unusual Death: He gets this from Yakomaru's Akki. The last we see of Shisei is him getting dragged off the ground, crushed, and snapped in two. Yeesh.
- Dead Guy on Display: After his death, his corpse is left where it was. People promptly — and rightly — freak out.
- Foregone Conclusion: Anyone who reads the manga in parallel with watching the anime will quickly realize that Shisei will die in the Akki's rampage, which is shown in the very first manga chapter.
- Meaningful Name: His name means "four stars", alluding to his special eyes.
- Super Reflexes: Has them thanks to psychic powers.
- The Worf Effect: Allegedly one of the most powerful characters, he's offed pretty easily by Yakomaru's akki. And a fatal example of this trope at that.
Mizuho Watanabe and Takashi Sugiura
Voiced by: Miki Ito (Mizuho) and Hiroki Touchi (Takashi) (Japanese), Carli Mosier (Mizuho) and David Wald (Takashi) (English)Saki's parents, Mizuho is the Head Librarian and Takashi the Mayor of their village, both quite important jobs. They Love her dearly and are overjoyed when she finally becomes "an adult" after receiving her power.
- Adult Fear: Their oldest daughter Yoshimi was killed because they thought she was unable to control her power. Turns out she most likely just had a bad eyesight.Mizuho: I don't want to lose another child!
- Affectionate Nickname: They sometimes call Saki "Sa-chan". And likewise they used to call Yoshimi "Yo-chan".
- Childhood Friend Romance: They have known each other since childhood.
- Foreshadowing: When Saki was small Takashi told her about monster rats and the possibility of their "false obedience".
- Generation Xerox: According to Tomiko, Saki is a lot like her mother. Saki and Satoru have several similarities to them. Both couples have known each other since childhood. Saki and Mizuho look quite similar while Satoru and Takashi share some quirks such as liking silly pranks as children and growing up to be kind and mature men. Not to mention that both women hold a position of higher power while both men have a "less" remarkable position, though their jobs are still considered to be very important.
- Good Parents: They really love and try to do the best for Saki.
- Happily Married: They have a loving, supportive relationship.
- Heroic Sacrifice: They stay back in their village to burn all the books in the library that could contain valuable information so Yakomaru can't use it.
- Hot Librarian: Mizuho who works as Head Librarian is quite attractive. According to Saki, working as the Chief Librarian means that Mizuho holds a job with far more responsibilities than her husband's as a Mayor.
- The Prankster: When he was at Saki's age Takashi liked to play the same type of pranks as Satoru, according to Mizuho at least.
- Strong Family Resemblance: Saki looks like Mizuho but has brown eyes and hair just like Takashi.
Monster Rats (Bakenezumi)
Voiced by: Daisuke Namikawa (Japanese), John Kaiser (English)
- Ambition Is Evil: He overthrew the queen, brought technological advancements to the Robber Fly colony, built a massive army, and crushed any opposing colonies that stood in his way. And he's hungry for more... Eventually subverted.
- And I Must Scream: After being defeated, the Ethics Committee sentences him to eternal suffering, being turned into a shapeless blob that can only feel pain. Saki grants him death, eventually.
- Anti-Villain: Type III. Despite his absolutely brutal methods & manipulative personality, he is rebelling against an extremely cruel society that will destroy entire colonies without a second thought, and for minor reasons. He also appears to legitimately believe he is doing what is right for his people, rather than for his own personal lust for power.
- Big Bad: Confirmed to be this by Episode 18.
- Big Good: Seen in-universe as this by his colonies. They treat him as a hero who will, along with the Messiah, rescue them from the tyranny of the PK users.
- Blood Knight: As if raising an advanced army isn't enough, he brings Saki and Satoru to Squonk's colony not just to find out the location of Maria and Mamoru, but to use them as weapons against the independent colony. After the Goat Moth refuse to respond, he becomes boisterous and bloodthirsty, in contrast to his usual slippery behavior.
- Blue and Orange Morality: Subverted. The characters assume that the Bakenezumi have an extremely alien and "animal" mindset, but it becomes clear rapidly that they are much more human in behavior than initially assumed. They have an extremely violent society, but no more than humanity does under similar circumstances.
- Chekhov's Gunman: He appears in the first story arc, in a rather minor role of supporting Saki's and Satoru's escape from the forest. Cut to Episode 15 and he's back, only this time he's not a minor character at all. He's ousted the Bakenezumi queen, unified most of the nearby colonies, and drastically improved the colonies' technology and armory (to the point of surpassing those present in the human settlements).
- In the third arc. He's transformed his once lowly colony into a superpower that easily crushes the Giant Hornets. And now he has his eyes on the human settlements..
- The Chessmaster: Absolutely. Lampshaded in Episode 20 by Saki, mentioning how he had the human race at the palm of his hand from the get go. It's even implied that he started concocting his plan to take out the human settlements before the start of the series.
- Fate Worse Than Death: By the Ethics Committee. They use their Power to make every nerve in his body feel the maximum level of pain, while keeping him alive indefinitely in the process.
- From Nobody to Nightmare: He started out a lowly servant of his colony who would then rise in power and become the series' Big Bad by plotting to overthrow humanity.
- Hidden Agenda Villain: While he revealed his true colors in episode 18, the exact reason why he would attack the human settlements is not known until Episode 21. See The Reveal for his true intentions.
- Hoist by His Own Petard: Making a enemy of Kiromaru and wiping out his colony for having different beliefs than him leads to the death of his Messiah and unravels all his plans. And his exploitation of death feedback to kill humans may have been what inspired Saki to take out his Akki in the same way.
- Hypocrite: For all his talk about what mankind has done he had no problem destroying enemy colonies. He also has reduced the role of queens to little more than slaves for reproduction. Also, he openly criticizes traditional Bakenezumi culture for treating its people as tools, only to later sacrifice many of his own men.
- I Did What I Had to Do: This is what he tells Saki and Satoru when they ask him why he killed innocent civilians and sacrificed his own men.
- Manipulative Bastard: He is very adept at manipulating others to do what he wants, such as having Satoru be a weapon or provoking a war with the Giant Hornets.
- Meaningful Rename: After gaining higher status in the Bakenezumi society, Squealer gains a more dignified name, Yakomaru. It turns out that he doesn't like it too much, preferring his birth name.
- Motive Rant: In episode 25, he gave justification for his genocidal intentions while at the same time calling humans out for their excessive cruelty towards his own kind.
- My God, What Have I Done?: Though he defends his actions, it is obvious he is horrified that all the sacrifices of his people were for nothing, and that he has doomed all his colonies and possibly his entire species.
- Psychotic Smirk: Very often when he is manipulating others.
- Rebel Leader: Leads the Bakenezumi against the humans, who are considered tyrannical.
- Slimeball: Squealer has a very slippery personality, acting subservient to humanity while making it obvious how selfish he is. This is implied to be an act in order to make himself seem much less threatening.
- Stealth Insult: Fond of these when talking to the humans. He says that the Bakenezumi are lower than "the gods", but he will also state that he views all intelligent lifeforms as equal, essentially calling the protagonists evil for the way they treat his people.
- The Reveal: Episode 21 reveals his grand scheme. It turns out that he wants to give the humans a taste of their own medicine and make the bakenezumi the rulers, not the other way around. How does he do this? Simple: after killing Maria and Mamoru, he abducts their child and raises him to become an Akki. Then, as the Akki wipes out human villages, the hospitals would be kept intact so the armies could abduct human infants (as infants of a vanquished colony are considered spoils) and raise them to become Akkis as well. So even if his original plan fails, Yakomaru would only have to wait until the human children develop PK for him to overrun not just Japan, but Eurasia as a whole and quite possibly the world.
- Episode 25 then goes one to reveal that he is motivated to defend his people, rather than a desire for personal power.
- We Have Reserves: He uses his fellow Bakenezumi soldiers as mere cannon-fodder. Satoru calls him out on this, though Squealer believes it was what they had to do.
- Well-Intentioned Extremist: Everything he does is to protect and liberate his people. But unlike Kiroumaru, who mostly shows concern for his own colony, Squealer extends this to his species as a whole at the expense of individuals and even colonies.
Voiced by: Hiroaki Hirata (Japanese), David Wald (English)
- Badass Normal: Considered a respected, powerful warrior in a world of psychic powers.
- Chekhov's Gunman: He first appears near the end of the first story arc as the leader of a bakenezumi military that is loyal to the human villages. He saves the five protagonists from being turned in to the Ethics Committee, but otherwise he didn't leave too much of an impact nor did he receive a lot of screen-time. He comes back for the final act and this time he will serve as a key figure for the rest of the story.
- Go Out with a Smile: And he shows it by pulling off his own bandages.
- Hazy Feel Turn: His grinning, his knowledge of Tokyo, and keeping secrets made Inui and others not sure whether to trust him. Turns out he is against Squealer and his group, but he also made it clear to Saki and Satoru he once sought the Psychobuster in order to protect his own colony.
- Heroic Sacrifice: Covers his face with bandages and makes it appear as if he is using power in order to make Mamoru and Maria's child kill him. Causing his death and the child's Death Feedback.
- Last of His Kind: Implied to be the last Giant Hornet. Episode 25 confirms that the Giant Hornet's queen is still alive though, so there's still hope for his colony.
- Pet the Dog: With the reveal of where his loyalties lie, it shows that him helping the kids when they were younger as this. He even asked them not to tell anyone for fear of others finding out.
- Put on a Bus: For the second story arc anyway.
- The Bus Came Back: He returns for the third act and plays a much larger role in the story's endgame.
- Revenge: Against Squealer for the death of his colony.
- Slasher Smile: He gives a good one after returning from battle against the Goat Moth Colony.
- The Stoic: Befitting a military commander, he's collected and calm all the time.
- Taking You with Me: Pulls this on Yakomaru's Akki, as their Death Feedback activates on fellow Bakenezumi as opposed to humans.
- Undying Loyalty: To the Giant Hornet Colony and his Queen, for better or worse. Also, to humans, though this is revealed to be a lie, and he once wanted to wipe them out to protect his colony.
- Well-Intentioned Extremist: He once had essentially the same plan as Squealer, though it involved the use of the Psychobuster instead of the Akki to exterminate the humans, but he gave up on it when the risks became too great.
Voiced by: Akiko Yajima (Japanese)An Akki apparently controlled by Yakomaru, called "the messiah" by the Robber Fly and allied colonies. A boy in the novel and manga, a girl in the anime.
- Alas, Poor Villain: After finally finding a way to kill the Maria's child, Saki is saddened over the fact that she wasn't actually an Akki, but rather just manipulated by Yakomaru into thinking humans were enemies.
- Apocalypse Maiden: His/Her existence pretty much spelled doom for the human race.
- Ax-Crazy: As with most Akkis. Emphasized in Episode 21. Finally revealing herself to be Maria's child, she has a blast exploding every civilian she sees before going bananas as she brutally curbstomps Shisei.
- Or not. Actually the whole way she was defeated hinges on the fact that she is not really an Akki. She is merely conditioned to consider herself a Bakenezumi, and views humans as a different species unworthy of the same empathy as real people. Which is exactly why humans can kill Bakenezumi without triggering Death Feedback.
- Berserk Button: In general, the kid seems to go into a rage whenever allied Bakenezumi are killed.
- Black and White Morality: Having been raised by Bakenezumi to see Bakenezumi as his own people, he is merely doing what he believes is good for them.
- Dark Messiah: To the Bakenezumi, s/he's "the messiah who came down from heaven." To the human race, she's quite possibly the worst thing to have ever happened to them.
- Dissonant Serenity: The child's relaxed look in the anime as she walks over to Shisei calmly killing people in the process is nothing short of scary to watch.
- The Dreaded: Oh boy, yes. Witnessing the brutal murders of a survivor and Fujita was all it took for Satoru and Saki to realize why the hospital's survivors were so horrified of the child.
- Dumb Muscle: Was raised to be simpleminded so she wouldn't disobey Yakomaru's orders and wound up too stupid to see past Kiroumaru's Paper-Thin Disguise.
- Enfant Terrible: Definitely no older than 12 years old and most certainly one of the biggest horror shows we've seen in this series.
- Evil Laugh: In Episode 21. She sure finds the death of Shisei hilarious, doesn't it?
- Evil Redhead: Given that her mother is Maria, it was inevitable that she would have inherited her mother's hair color.
- The Faceless: Her face isn't shown until episode 21, because it would reveal her parentage.
- Game-Breaker: In universe, for Yakomaru. You can't possibly have a better weapon in this universe than a child with untampered power.
- Gender Flip: In the novel the Akki's a boy, the anime turned him into a girl. The manga kept his original gender, but due to the cutesy artwork style and the long hair, he still looks like a girl.
- Hero Killer: Do we really need to say why she is this? Responsible for the deaths of Shisei, Tomiko, and many more.
- Hoist by His Own Petard: Saki tricks her into fatally wounding Kiroumaru. She considers herself a Bakenezumi, so she thinks she has killed one of its own kind, and dies of death feedback.
- Kill All Humans: The Bakenezumi raised her to believe this.
- Kill It with Fire: Her preferred way of killing people.
- Luminescent Blush: Frequently in the manga, especially when he is chasing and killing people, which makes it more disturbing.
- Momma's Boy: In the manga, where he was male. In the omake, which depicted the dead characters in heaven, the Akki ignored his father Mamoru, even snapped at him when he tried to touch him, but approached his mother Maria and hugged her.
- Not in the original novel, though.
- Murder by Mistake: Accidentally kills Kiroumaru after being tricked into believing he was a human.
- Nightmare Face: Let's just say you don't want to get her angry.◊
- Nightmare Fuel Station Attendant: It's bad enough that this child's an Akki. And then her true identity is revealed and she unleashes this crazed laugh.◊ Sweet dreams!
- Nothing Is Scarier: We don't even get to see what the child looks like until Episode 21, building up even more dread for the characters and the viewers alike.
- No Name Given: Is simply known as "The Akki"/"Fiend" among the villagers and "Messiah" among the monster rats. Whether or not Yakoumaru or his/her biological parents Maria and Mamoru gave him/her a name is unknown.
- Person of Mass Destruction: She causes plenty of death and destruction when she pays Kamisu 66 a visit... and there's nothing the villagers can do about it.
- Raised by Bakenezumi: She was raised by Yakomaru and members of the Robber Fly colony. Given that her parents are dead and the potential destructive power humans can have if they live outside the settlements, it's all part of Yakomaru's plan to obtain the ultimate weapon. Actually a plot point, as because she doesn't see humans as her kind, her death feedback doesn't activate when she attacks them. Instead, her death feedback activates when she attacks a Bakenezumi, because she considers herself one - as she learned when she killed Kiroumaru.
- Rapunzel Hair: Her scarlet hair is very thick, wavy and falls to her knees. Even as a boy in the manga and novel, he has very long hair.
- The Reveal: Episode 21 makes it crystal clear that the Akki is not Maria nor Mamoru. Rather, it's their daughter. Episode 24 more or less confirms that the kid isn't even an Akki. She has a normal psyche, but as raised to believe she was a Bakenezumi and, apparently, hates humans, if her reaction to her own reflection was any indication of it.
- Roaring Rampage of Revenge: The manga's version of the child's eventual death. It wasn't so in the novel and the anime.
- The Sociopath: It's clear that she has no human moral compass to speak of. Subverted, as she grew up believing the Bakenezumi were her kind and humans were her enemies, and was probably taught by Yakomaru to show them no mercy.
- Strong Family Resemblance: To Maria and Mamoru. Inherits Maria's eye and hair color, with Mamoru's hair texture and his same eye shape. In the manga, where he is a boy, he is basically a red-headed Mamoru with longer hair.
- Technical Pacifist: Due to the numerous genetic modifications, the kid is unable to kill "fellow" Bakenezumi and is most likely appalled by the idea. Taking their weapons and allowing someone else to kill them is much more acceptable, however.
- Unskilled, but Strong: Compared to the likes of Shisei or even Satoru, the Akki doesn't really display much in the way of skill or precision with PK. But due to the Death of Shame and other limitations against violence, no human can defend themselves. This is best displayed in the fight against Shisei, where the kid attempts to crush Shisei with boulders, only for Shisei to block them and dig a whole under the Akki. In response, the Akki just breaks his spine.
- What Could Have Been: After his/her death by death feedback, Saki breaks into tears thinking of how lovely a child he/she would have been had he/she had a normal life in the village. The manga has a montage of Mamoru, Maria and him as a happy family.
- Wild Child: See Raised by Bakenezumi for details.
- You Are What You Hate: It's tough being a human when you're raised to Kill All Humans, as it finds out.
- You Gotta Have Blue Hair: According to the novel, he canonically has red hair (though not blue eyes), and it was not just a case of an anime artistic choice. In futuristic Japan, the novel elaborated that a very small percentage of Japanese now have red hair, Maria being one of them, which was why Saki quickly recognized the Akki as being Maria's child.
Characters from Flashbacks
Voiced by: Mutsumi Tamura (Japanese), Kalin Coates (English)The latest recorded Akki after the destruction of the modern world. A boy who showed sociopathic tendencies and suffered abuse at home, he eventually realized his Power Limiter doesn't work. This led to a vicious rampage that terrorized the village for days.
- Abusive Parents: Heavily implied, especially in the anime.
- Ax-Crazy: As with most Akkis.
- Beware the Quiet Ones: If the flashbacks in the anime are anything, K was just an average, albeit anti-social and quiet boy before he snapped and massacred a thousand villagers, including his entire class.
- The Dreaded: Take a look at Tomiko's reactions when she sees K entering the hospital. That's all you need to know about how the other villagers saw K at the height of his rampage.
- Enfant Terrible: Boy, was he ever.
- From Nobody to Nightmare: See Beware the Quiet Ones above. No one but his teacher saw that K had sociopathic tendencies underneath his unassuming exterior.
- Mommy Issues: Implied, especially by the anime, that this is one of the reasons behind his breaking down into extreme violence.
- Nightmare Face: With a pale and bloody face, his eyes rolled back, and a rather unnerving Slasher Smile, K's face is one hell of a frightening example of this.
- Nightmare Fuel Station Attendant
- Only Known by Their Nickname: K obviously isn't his real name. The novels explain that the former Code of Ethics required that his name be censored in the records kind of like how witness protection programs work. Tomiko does speculate that K could have been one of his initials however.
- Person of Mass Destruction: On the first day of his rampage alone, he took out 1,000 villagers.
- Posthumous Character: Died long before the series' start.
- Slasher Smile: Does THIS◊ look like a benevolent smile to you?!
- The Sociopath: There were many hints of him being this prior to him becoming an Akki.
- Wide Eyes and Shrunken Irises: After his awakening as a Fiend in the anime. And it is terrifying (for everyone but K himself).
Izumi KutegawaA young girl who became the latest Karma Demon before Shun himself became one decades before the main story. The only child of farmers outside the Village of Gold, Izumi's power began subconsciously spilling itself, warping her environment around her, including living beings.
- Driven to Suicide: After realizing what her power was capable of doing to her environment when she was afflicted with the Hashimoto-Appelbaum Syndrome, she herself proposed that she be disposed of before she could do further harm.
- Heroic Suicide: Realizes that the "medicine" she was given was actually poison, but takes it anyway.
- Nice Girl: According to Tomiko. The poor girl did not deserve her fate.
- Self-Made Orphan: She unwittingly killed her parents when her power mutated them and the farm workers. She wasn't even told about this, but it's implied that she knew and that it's one of the factors that pushed her into having herself killed.
Emperor Daigangitei (The Emperor of Delight)
Voiced by: Nobuo TobitaThe fifth emperor of the Holy Cherry Blossom Empire, who ruled eight hundred years before the events of the series.
- Ax-Crazy: His reign was characterized with bloodshed and tyranny and he killed numerous people on a whim with no compulsion. And he lived during a time when there was no death feedback or attack inhibition yet so his actions were deliberate. See The Caligula below to see an example of what he did for "fun".
- The Caligula: On his coronation day, he forces the crowd attending his coronation to keep clapping by psychokinetically immolating the first 100 people who stop clapping as "sacrifices" for the festivities.
- Posthumous Character: Died long before the series' start.
False Minoshiro (National Diet Library Tsukuba Branch/Panasonic Automotive Archive, Autonomous Evolution version SE-778H Lambda)
Voiced by: Sakiko Tamagawa (Japanese), Shelley Calene-Black (English)
- Artificial Intelligence: Designed to catalogue information about humanity's fall and the rise of those with the power.
- Cute Machines: It's a libraryslug.
- Organic Technology: Despite being a machine, it's implied to be this, and resembles a living creature.
- Expositron 9000: See its full name.
- Spock Speak/Creepy Monotone: Because it's essentially a robot, it delivers information in a robotic deadpan.
Manga Only Characters
These characters appear only in the manga which is very different in tone, story and characterization from both the novel and the anime.
Haruka SakaiA first-year at Sage Academy after the manga's timeskip. She, along with her Childhood Friend Sho are survivors of the attack on Kamisu 66 and accompany Saki and Satoru to Tokyo. Like Reiko 14 years ago, she does not have very strong abilities.
- Big Damn Heroes: During the Battle of Tokyo she uses her Karma Demon powers to send a swarm of mutated bats to massacre the Bakenezumi about to pounce on Saki.
- Bi the Way: Although she's obviously in love with Sho, she definitely develops a crush on Saki after their "relaxation time."
- Canon Foreigner: Only appears in the manga adaptation.
- Go Out with a Smile: As she walks into the ocean to die, either from her wounds or through suicide.
- Replacement Goldfish: Saki sees her as one for Reiko, as she had also been targeted for elimination due to her weak abilities. Saki is likewise unable to save her.
- Shrinking Violet
- Superpower Meltdown: Comes with being a Karma Demon. The only reason why Susumu took her along was to use her as a living weapon against the Bakenezumi.
Sho NiimiA first year at Sage Academy after the manga's timeskip, who joins Saki and Satoru on their quest in Tokyo after the attack on Kamisu 66. He constantly insults and bullies his Childhood Friend Haruka, but secretly harbors strong feelings for her and will protect her at all costs.
- Big Damn Heroes: Was this toward Haruka when she was targeted by the Fujoneko.
- Body Horror: Due to his exposure towards Haruka's Karma Demon powers, his hair turns white, the skin around his cheeks becomes deformed and cracked and what appears to be a small tentacle sprouts from the back of his head. He retains these deformations into his adulthood.
- The Captain: Becomes a military commander and the leader of an expedition to North America in the epilogue
- Cannot Spit It Out: Has this bad in the case of Haruka. This comes to a head as she's transforming into a Karma Demon, leading to his Anguished Declaration of Love.
- Canon Foreigner: Only appears in the manga adaptation.
- Tsundere: A male example towards Haruka.