Main Characters
Civilians, Rokuhara Shogunate, General Headquarters, Unaffiliated People, Tsurugi And Cruxes, Past Characters
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Kamakura City
Konatsu Kurusuno
Konatsu Kurusuno
A childhood friend of Yuhi, whose family adopted him several years ago. A huge tomboy at heart, she spends her time bickering with him and exchanging blows. She quickly joins him in his investigation for their friend's disappearance. She also has a huge crush on their history teacher, Suzukawa Ryobu.
- An Arm and a Leg: Ultimately loses her arms and legs after the incident with Suzukawa.
- Break the Cutie: She's left utterly broken by the experience of her teacher torturing her by the end of the first chapter, leaving her bedridden.
- The Bus Came Back: After vanishing from the plot after chapter one she returns during Nemesis as the pilot of Guts Eidar.
- Childhood Friends: She has known Yuhi ever since he was adopted by her parents at a very young age.
- Despair Event Horizon: Learning that the teacher she always admired was a Serial Killer, who then tortured and crippled her for no other reason than giving her despair effectively left her in a catatonic state ever since.
- Disney Villain Death: Played very darkly as Guts Eidar drops from the sky from having spent all its fuel, this mysterious foe is revealed to have been Konatsu alongside three others causing Kageaki to try in vain to save her. He then is left to examine the remains to his full horror, asserting that they were truly the heroes and he the villain.
- Dramatic Unmask: The reveal to her identity as the pilot of the head section for Guts Eidar comes from the faceplate cracking open revealing her face to Kageaki who immediately recognizes her.
- Dying Declaration of Hate: Her final words in Nemesis are simply words full of spite and hate aimed at Kageaki as she falls to her death.
- Handicapped Badass: In the Nemesis route. Sticking her in a tsurugi, pumping her full of crazy drugs and pointing her at the man she hated more than anything in the world made her downright handicapable.
- Implied Love Interest: It is heavily implied she has feelings for Yuhi, in spite of their tumultuous relationship.
- Living Emotional Crutch: In Nemesis, after the horrific things Suzukawa put her through, she lies on her bed in a haze, not reacting to anything in the outside world...but then her parents mention Yuhi Nitta and she remembers the defiant words he threw at Suzukawa about how their bond as friends couldn't be broken and that they had lost nothing in the face of his cruelty, how he would support them no matter what happened. Her life suddenly has meaning once more as she starts to remember him and her parents promise that he'll be able to visit her soon. But then something terrible happens that no one talks to her about and she finds herself not wanting to know. A strange man visits her in her hospital room and shows her, not just Yuhi Nitta's death notice, but the name of the man who killed him. And now the memories come flooding back, of Yuhi and now she sees that all she'd wanted before was to be with him and she never realized it...and then the face and form of Kageaki Minato, the "cop" who killed him flares into her memory like a beacon. The strange man offers her a chance at revenge. She accepts.
- Lost in Translation: The official translation has her screaming: "It was you!" at Kageaki, but in the original it was "Yurusenai!" meaning something along the lines of "I'll never forgive you!". So, not the same thing at all.
- Morphic Resonance: In a really weird way. In the Nemesis route, she pilots the headpiece for the combining tsurugi Guts Eider. Separated, the headpiece resembles a humanoid figure with their lower arms and legs cut off, just like hers were.
- Precocious Crush: Even though she's implied to like Yuhi, she's also got the hots for Sukuzawa, their homeroom teacher.
- Psycho Serum: It is heavily implied that the one of the reasons reason she and the others that made up Guts Eidar were so unhinged was due to them being pumped so full of drugs meant to boost their physical traits that they couldn't think straight.
- Rape as Drama: After easily dismembering Konatsu, Suzukawa forces Tadayasu to rape her on pain of having the same thing done to him, even using his tsurugi's power to force blood into his penis when he can't become erect and implicitly using said powers to force them to move. This is not presented as erotic, but as a clear violation of the two of them, intended to both horrify the reader and underline the sheer powerlessness of normal people to oppose a musha.
- Roaring Rampage of Revenge: During the Nemesis Arc, she becomes downright insane and is out for Kageaki's blood.
- Say My Name: "MINATO KAGEAKI! IT WAS YOU! IT WAS YOUUUUU!!!"
- Took a Level in Badass: In the Nemesis route. She went from a normal high student to a limbless high school student to the the pilot of the headpiece of a giant multi-part tsurugi designed for the sole purpose of allowing the pilots of its various parts to destroy Kageaki Minato and Muramasa. Most high school students can barely get a paper route!
- Tsundere: Behind her tomboyish and violent manners, she really cares about her circle of friends to the point of sticking with them despite the danger.
- What Is This Feeling?: She notes that somehow she feels calm and at ease whenever she's trapping Yuhi in a leglock. He says it's because she's crazy.
Tadayasu Inagi
Tadayasu Inagi
Another childhood friend of Yuhi, and a huge fan of mecha racing cruxes. Born in a wealthy family, he dreams of becoming a racer himself and training for some time with this goal in mind. Like Konatsu, he joins Yuhi during his investigations, being more of a smooth-talker and assertive than him.
- Blind Seer: While he lost his eyesight, in a way he gained a new kind of vision, able to not only determine Muramasa's identity as Yuhi's killer, but even determine in a vague sense why she killed him.
- Break Them by Talking: Unintentional example, but his words towards Muramasa about how he won't forgive her for her role in Yuhi's death comes within inches of breaking her her spirit, the very same thing that keeps her existence together.
- The Bus Came Back: After being blinded in chapter 1 he disappears from the plot before returning much later in Muramasa's route where the two meet.
- Career-Ending Injury: At the end of the first chapter, Suzukawa, aware of his dream to be a pilot, proceeds to destroy his eyes with one slash of his sword in order to teach him despair.
- Childhood Friends: Alongside Konatsu, he's one of Yuhi's most important friends, who knows him since childhood.
- Eye Scream: Ends up having his eyes cut out by Ryobu despite having done everything he asked for.
- Hyper-Awareness: He's a very perceptive and intelligent person, even without his eyes.
- Rape as Drama: Suzukawa threatens to dismember him as he did Konatsu if he doesn't rape her, even using his tsurugi's power to force blood into his penis when he can't become erect and implicitly using said powers to force them to move. This is not presented as erotic, but as a clear violation of the two of them, intended to both horrify the reader and underline the sheer powerlessness of normal people to oppose a musha.
- The Smart Guy: In spite of his laid back appearance, he is someone who studies hard in order to one day be able to acquire a racing crux of his own. As such, he often takes the role of as the brains of the group.
- Super-Senses: Downplayed. His sharp eyes are mentioned a few times, and Yuhi says he can read a book from the other side of the classroom.
Ritsu Kazama
Ritsu Kazama
The missing friend (sort of) of Yuhi, Konatsu and Tadayasu. She's known as a loud and obnoxious girl with a mean streak, very strict on the school rules, but is considered a dear friend in spite of it. Her disappearance at the very beginning of the story causes her three friends to search for her whereabouts.- Cute Little Fangs: Demonstrates these when she's laughing...at least in Nitta's memory.
- Jerk with a Heart of Gold: Judging from the way she's talked about, it seems she had a tendency to pick on her friends unmercifully, particularly Yuhi. However, she was still a beloved friend, implying this.
- Noblewoman's Laugh: Whenever Yuhi imagines her, she does that distinct Oh-oh-oh-oh. It's unclear if she really did this though or if it is just his imagination of her.
- Off with His Head!: According to Yuhi, she was killed via decapitation.
- O.O.C. Is Serious Business: The whole reason to why people suspected something had happened with her was due to her despite being a delinquent, she was always very punctual and would never miss class. So when she never showed up at school, everyone immediately became worried.
- Posthumous Character: While Yuhi and his friends try to find her, wondering what have might have happened to her, in truth she was dead before their search started with the only info on Ritsu being from other characters.
- Signature Item Clue: While searching a suspicious clearing for clues as to her disappearance, Yuhi finds the severed head of her favorite dolphin charm. Talk about foreshadowing.
Ryobu Suzukawa
Ryobu Suzukawa
The young homeroom teacher of Yuhi's high school. His charisma and modern teachings makes him loved by his students, but he sometimes slips criticism towards the government, hiding a deep resentment for the Rokuhara Shogunate, which is responsible for the death of his entire family. He's also concerned by Kazama Ritsu's disappearance, before joining the three students in their investigation once word of their shenanigans began to spree.
- Author Tract: In-Universe, he has something of a habit of letting his bitterness against the Rokuhara Shogunate seep into his school lectures.
- Bait the Dog: When the principal is berating Yuhi, Tadayasu and Konatsu for endangering themselves by investigating Ritsu's disappearance and planning to suspend them (an act which would certainly lead to their families grounding them and thus cutting off their investigation), Suzukawa steps in and defends them for trying to help their friend, going so far as to use his own experience with the deaths of his family to sway the principal away from suspending them. He even helps them investigate, revealing valuable clues and insights that help reconstruct the events of Ritsu's disappearance and lead them to the place of her death...all so he can kill them the way he killed her.
- Berserk Button: After Kageaki inaccurately calls him a servant of Rokuhara, Suzukawa's frustration at not being able to fight him properly gives way to rage and inspires him to use use Shinkai's shinogi to splash his own blood on Kageaki's face guard, surprising and temporarily blinding him.
- Blue-and-Orange Morality: Beauty Equals Goodness, but all beauty is ruined and destroyed by this wicked world, so Sukuzawa must "save" everything he finds beautiful by destroying it before it can fade or be defiled.
- Break Them by Talking: Goes on to try and teach the children despair by having a lecture on how easily people can abandon morals with the right incentive and then having them commit to it. Yuhi ends up not having any it however.
- Churchgoing Villain: He started out as a Christian, despite the Rokuhara's unofficial-but-very-real crackdown on the religion, and claims to still be so, even saying he goes to church once a week. It turns out this is a front, though. He actually abandoned his old beliefs and found meaning in a different sort of faith. Or lack thereof.
- Cold-Blooded Torture: Tortured both Yuhi and his friends without a hint of emotion or restraint, all to present them with despair.
- Deal with the Devil: When it becomes clear that he is losing his duel with Kageaki he begins asking for more power with Ginseigo then appearing before him, granting his craving. Though it ends up being for naught in the end as he burns through the remainder of his bodies calories, causing him to freeze and be easy pickings.
- Didn't See That Coming:
- Suzukawa expected the little "lesson" he put on for the teens to have inspired crushing despair within Yuhi. Instead, it put him into a towering rage that actually led the teen to physically attack him with such force that it knocked him on his ass. Yuhi then let loose a The Reason You Suck speech that throws him completely off-balance and drives the point about what a pathetic loser he really is and how badly his lesson failed home. Suzukawa can't even muster a proper counter-argument.
- The last thing he expected was to confront a real musha who knew how to fight, and even with a boost from Ginseigo's egg and a couple of unexpected tricks, Kageaki and Muramasa eat his lunch.
- Driven to Madness: He started out as a good man who loved his country and his wife and child, but was forced not only to survive the horrors of war, but to watch Yamato being vitiated by the Rokuhara Shogunate after their brutal takeover, his wife and child dying before his eyes after Rokuhara-caused food and medicine shortages weakened them to the point where they were killed by a simple flu. Falling into despair, Suzukawa came to believe this ugly, corrupt world (as exemplified by Rokuhara) ruins and devours everything beautiful and that he should have killed his family while they were still beautiful instead of watching them wither away in suffering while he was powerless to stop them. From that it was an easy jump to the belief that the the only salvation for the beautiful things he loves from this defilement is to kill them himself while they're still beautiful. And he loves kids and their youthful idealism most of all.
- Evil Stole My Faith: First the war tore apart his beloved country, then Rokuhara's bloody takeover left his wife and daughter deathly ill due to the subsequent lack of food and medicine. Instead of ending their suffering, Suzukawa, a Christian, watched helplessly as they wasted away and died before his eyes while he prayed that God would spare them. Now Suzukawa doesn't believe in anything, least of all hope.
- Face Death with Dignity: For all his myriad faults, at the very end he realizes he should never have tried to fight Muramasa and accepts his death with calm.
- Fangs Are Evil: His open mouth portraits show canines notably longer than the rest of his teeth, and he's a serial killer of teens.
- Foreshadowing: Yuhi notes that using the tragedy of his family to manipulate someone who has nothing to do with it (i.e. the afore-mentioned principal) is a pretty ignoble thing to do for such an upstanding man as Suzukawa. Later it turns out he's not so upstanding.
- Four Eyes, Zero Soul: Once it is clear that he is not right in the head and is far more cruel than he presented himself, his glasses are made opaque to highlight them as he tortures Yuhi's friends while he is Forced to Watch.
- Hope Crusher: He tries to be this to Yuhi Nitta and his friends by torturing them. Results varied.
- Hope Spot: Applies this trope as a means of psychological torture against Tadayasu, giving him the hope that his future might be spared if he does what is asked of him only to then rip it away anyways, all to teach the kids despair.
- Inadequate Inheritor: Kageaki notes what a shame it is that such a famed tsurugi should happen to end up in the hands of a guy like Suzukawa, both because of the deeds he performs with it and the fact that he can barely fly the thing properly.
- Just a Machine: Unable to see Shinkai as anything but an OS, he tells it to shut up when it offers insights beyond help in battle. However, at the very end of the battle with Muramasa, Shinkai tells him that their death is inevitable and suggests to simply accept it with grace and Suzukawa seems to take it to heart.
- Manipulative Bastard: Him helping the three friends in their investigation was simply a means to him to lure them to his hideout where he could kill them.
- Mask of Sanity: While seems like a cool-headed teacher most of the time, it all hides a dangerously unstable mind.
- Mr. Exposition: His status as a school teacher also serves a way to introduce the key concepts of musha battles to the reader.
- Politically Motivated Teacher: While he is a regular homeroom teacher, he is prone of slipping into political tracts in his lectures as a result of his bitterness against the Rokuhara.
- Rape by Proxy: WARNING: DO NOT READ! In order to teach Yuhi, Tadayasu and Konatsu to learn the meaning of despair he stabs Yuhi in the foot and forces him to watch as he amputates Konatsu's arms and legs then demands Tadayasu rape her on pain of having the same thing happen to him. When the teen can't become erect, Suzukawa uses Shinkai's power to control fluids to move blood to Tadayasu's penis. Judging from Yuhi's description of the act, he may also have been forcing their bodies to move as well. After this violation of pair is complete, he uses his power once more to make Tadayasu urinate upon Konatsu. And then he cuts out Tadayasu's eyes anyway. Rather than despair, this inspires something else in Yuhi.
- Serial Killer: He is the one responsible for the disappearances in town and has so far killed four young people, and is about to make it seven.
- Starter Villain: He is the first villain encountered in the story, and as he is fairly weak by most metrics (due to having no training with his tsurugi) he ends up simply being a simple workout for Kageaki.
- Tragic Villain: Oh, he's a monster. But if his country hadn't been taken over and ravaged by Rokuhara and his wife and child hadn't died slow, horrible deaths he was powerless to prevent as a result, he'd still be the good man he pretends to be. So he's a sick monster.
- War Is Hell: The first of several Tragic Villains whose lives and sanity were ruined by the war.
Misao Oji
Misao Oji
A new pilot participating in Kamakura's racing Grand Prix, which involves racing cruxes instead of tsurugi. She's the young daughter of Oji Suguru, a former regional champion in Yamato.
- Badass Driver: She is a racing crux operator, so it kinda comes with the territory that she would be good at it.
- Blinded by the Light: As part of a joint plan between her and her father, she has Avenger use a device which causes the sun to reflect off it, blinding the rival racer using the Ultima, causing a fatal crash that also took out part of the audience stands, killing several innocents. She agreed to do this under extreme pressure from Suguru, though.
- Brother–Sister Team: She and Suguru are actually brother and sister, with her working to help achieve his goals. However, he raised her as a father would.
- Daddy's Girl: She'll do anything her father needs her to in order to make his racing dreams come true. Not even her own body is as important to her. In fact, she considers herself an extension of his body.
- Emotionless Girl: She hardly ever emotes or shows emotion except when her father is involved.
- Extreme Doormat: When it comes to her father she will do anything he asks of her without complaint, regardless of its moral, ethical or just self-preserving issues.
- Family Relationship Switcheroo: At first they are presented as father and daughter, it is revealed that they are actually brother and sister, separated by several years and having different mothers.
- Parental Abandonment: Her blood father conceived her with his second wife, then died. Said wife found another husband and moved in with him. Alone.
- Practically Different Generations: It is revealed that she and Suguru are actually siblings, separated by enough years to be mistaken as father and child.
- The Quiet One: A girl of few words and often seems lost in her own world.
- Reluctant Warrior: She is fully aware that a racing crux is no match for a shin'uchi in combat, but when her father orders her to try to kill Kageaki, she prepares to fight. She hears her father talk about Ginseigo told him that using her egg would take everything away from him and give him power in exchange and that he and Misao are worthless so long as his dream can be fulfilled, but she still accepts it, crying as she does.
- Sex for Services: Sugaru is making her have sex with Tamura executives both in order to get funding for his crux design and to make sure that design is supported for the race. She does not enjoy this, but will do anything for Suguru.
- What Beautiful Eyes!: Her deep dark eyes have a powerful force of focus within that that grabs Kageaki when he talks to her—a focus he's only seen in armor racers.
Suguru Oji
Suguru Oji
A now retired pilot who abandoned his dream of becoming the national champion due to his age, instead passing the torch to his daughter in the hopes of attaining what he didn't: Becoming the world's fastest pilot.
- Ace Custom: He designed Avenger, a special racing crux specifically for Misao to drive. Deconstructed in that it's so avant garde that the only way he could get any support/funding for it was to prostitute Misao out to numerous Tamura executives for sponsorship.
- All for Nothing: He built a cheating device, a piece of armor which will turn and reflect light into a nearby pilot's eye into Avenger. When Avenger is damaged thanks to shenanigans during the big race, he pressures Misao into using it...blinding the pilot of Ultima Thule, sending him crashing into the stands and killing himself and several spectators, twenty-one people in all. Everything up to that point, all the sacrifices he and Misao made, meant nothing the second he made her flip that switch.
- Broken Ace: Was once one of the best crux racers around but the war cut off his racing career just when he was poised to take his racing out of Yamato to the rest of the world. By the time the war was over, Suguru was past his physical prime and his dream was out of reach. This rendered him bitter and blindly determined to have Misao accomplish what he couldn't in his stead, even if he has to resort to prostituting her, murder, or making a deal with Ginseigo.
- Brother–Sister Team: As mentioned, despite his being effectively her father, he and Misao are siblings, working together to help realize his dreams.
- Deal with the Devil: He is another one who has made a deal with Ginseigo, though he was able to mask it for the longest time.
- Family Relationship Switcheroo: At first they are presented as father and daughter, it is revealed that they are actually brother and sister, separated by several years and having different mothers.
- Loophole Abuse: The reason to why Muramasa was unable to find Ginseigo's egg during the race was due to it never having been implanted, Suguru had kept it in his pocket the entire time.
- Mad Scientist: The Mad Engineer sub-type. His design for the Avenger is considered utterly nonsensical, flying in the face everything that is known about racing crux design, even appearing unnatural and bizarre to those who have no experience with racing cruxes. It's almost profane in its strangeness and beauty. And, yet, it flies. Oh, does it fly.
- Parental Abandonment: His father died shortly after the birth of Misao, and his step mother abandoned the family, forcing him to raise Misao on his own.
- Parents as People: To say that he wasn't cut out to be a father would be a severe understatement. But then, he never expected to end up one.
- Practically Different Generations: It is revealed that he and Misao are actually siblings, separated by enough years to be mistaken as father and child.
- Promotion to Parent: After their parents died, he took over the role of Misao's father due to the vast gap in their age and her young age at the time, to the point that she almost sees him as her real father.
- Sanity Slippage: While it was questionable if he was all that sane to begin with, when Kageaki confronts him with the murder of the Ultima's pilot and several bystanders and the prospect of arrest he truly goes off the deep end and devolves into a giant Motive Rant.
- Screw the Rules, They Broke Them First!: After a pair of racers aligned with Shokyo's Ultima Thule crowd Avenger and end up damaging its arm in a way that makes it unable to pass to Thule fairly, Suguru uses a trick he built into Avenger to make a panel of armor reflective, blinding Thule's pilot and sending him into the stand killing a total of twenty-one people. As he tries to justify this while Kageaki is arresting him for murder, Kageaki points out that if the other two racers' stunt had killed anyone, he'd be arresting them for the same thing.
- Second Place Is for Losers: In the big race, Avenger was set to take second against Ultima Thule thanks to being damaged. Even that position, it would still have been a more-than-respectable showing that still proved the quality of his design and of his daughter's racing talents. Instead, he chose to use a dirty trick to take first, which resulted in 21 people dying and Avenger likely only being remembered for the tragedy Suguru caused.
- Shooting Superman: At first he shoots Kageaki thinking he is just in a regular racing crux as they can't block bullets. However, even after he reveals Muramasa underneath all that extra armor, Suguru keeps shooting him even though a gun has no hope against a true tsurugi.
- Tragic Villain: Everything he does is and makes Misao do is for the sake of the dream that was stolen from him by the war. He can't see beyond that, ignoring the love Misao has for him and how he's ruined her life for his ambitions.
- The Unfettered: He is utterly determined to have his daughter reach the world stage after he himself was no longer able to compete. And he will not shy any method to achieve this goal, be it using his daughter in sex trade, murdering other racers, or taking a deal with Ginseigo.
- War Is Hell: If not for the war, he would probably have been the world racing crux champion. By the time racing started again, he was out of his prime. This led to him basically molding poor Misao into nothing but a tool for his ambitions from the moment she entered his care.
- We Would Have Told You, But...: He managed to fake out an attempt to destroy Avenger with a grenade by substituting it for Tamura's spare crux. Naturally, this required him to tell as few people as possible, so he left Misao out of the loop.
- Worth It: He figures that finally getting the chance to dominate the Yamato crux races with his own personal design and take on the world stage once more is worth pressuring Misao into being the living sex toy of a bunch of slimy executives. And such is poor Misao's devotion to him that she agrees.
Emishi
Yagenta
Yagenta
An Emishi who saves Kageaki's life in Chapter 2, living apart from the local village with his two daughters. He's an old friend and rival of Rokuhara Captain Nagasaka Ukyo, and allies with Kageaki in order to settle their lifelong dispute over their first love, Ichihime.
- Ancestral Weapon: An odd example. He indirectly passes the legendary tsurugi Masamune down to Ichijo Ayane, the grand-niece of his first love. So it basically goes to someone who could have been a relative by marriage if Ichihime hadn't been The One That Got Away.
- Arranged Marriage: After Ichihime turned him down, he ended up marrying an Emishi woman from a village in Fujikura, and seems to have been a good husband, despite never truly getting over his first love.
- Go Out with a Smile: He settles his duel with Ukyo Nagasaka and gets to die in the arms of Ichijo, the girl identical to his first love, feeling truly blessed as he goes.
- I'm Dying, Please Take My MacGuffin: As he lies dying, he gives Ichijo the piece of broken Masamune he'd used in his final combat with Ukyo.
- Love Triangle: He was in love with an Emishi woman called Ichihime, the same woman Ukyo was in love with as well. This lead to quite the rivalry between them that persists to this day even though she dumped them both.
- Mentor Occupational Hazard: Ends up being something of a mentor figure for several characters, including Kageaki. He then gets killed taking an attack meant for Ichijo.
- Older Than They Look: Downplayed example, he is in his fifties but looks about ten years younger due to a youthful appearance post-puberty being a racial trait of the Emishi. Though given their short life spans (typically 30 years), he is positively ancient by their standards, thus his body is more aged than a human of comparable years would be.
- The One That Got Away: In their youth he and Ukyo Nagasaka vied for the love of Ichihime, who turned them both down. Although Yagenta eventually married and started a family, he never forgot her.
- Power Fist: He managed to save a piece of the Masamune tsurugi, shattered when Ukyo Nagasaka detonated the seal on the mine where it was concealed. Though incomplete, it's enough for him to be able to form a gauntlet with a sword, which he uses to fight Ukyo.
- Small Role, Big Impact: He finds Masamune's gauntlet, allowing Sorimachi to get it and give it to Ichijo, allowing her to use the whole tsurugi after it regenerates.
- The Rival: He and (now-)Captain Ukyo Nagasaka of Rokuhara have been bitter rivals in everything since their youth, particularly when it came to the love of Ichihime.
- Taking the Bullet: Takes a sword strike from Ukyo meant for Ichijo, though fortunately it was a shallow strike. The second time however he wasn't so fortunate.
- You're Insane!: When he sees just how twisted Ukyo's love for Ichihime is, he can only proclaim him mad. Ukyo doesn't deny it.
Fuki & Funa
Fuki & Funa
Fuki and Funa
The two young daughters of Yagenta, who quickly took an interest for Kageaki and Muramasa due to their stature and samurai-like aura. Fuki is the more reserved eldest sister, while Funa is the excitable and cheerful youngest sister.
- Death of a Child: Both of them end up killed in their sleep by Kageaki thank to the Law of Balance. And unfortunately, he hesitated when trying to deliver a fatal blow to Funa, leaving her writhing on the floor in agony pleading for help with him putting her out of her misery in the middle of an emotional breakdown.
- Florence Nightingale Effect: Fuki is implied to have developed a Precocious Crush on Kageaki while helping him recuperate from his disastrous first battle with Fuma and Nagasaka.
- Innocently Insensitive: Being a child, Funa can say some insensitive things to others even if she didn't mean anything bad with it.
- Off with Her Head!: How Kageaki kills Fuki. He tries to stab Funa through the heart from behind so he doesn't have to see her face, but as mentioned above he botches it and has to decapitate her anyway.
- Shrinking Violet: Fuki is quite shy around strangers.
- Shy Finger-Twiddling: Fuki wrings her hands when nervous. Unfortunately she does this while in the middle of toweling the sweat off Kageaki's chest wound. It's quite painful.
- Sibling Yin-Yang: Fuki is calm and shy, Funa is energetic and outgoing. They form quite the contrast between each other.
- Unusually Uninteresting Sight: They are completely unfazed by having a giant robotic spider in their home and treat it like just another guest.
Enoshima Island
The Haya
The Haya Family
Takeshi Haya
A group of orphaned children living on the Enoshima Island met by Kageaki in Chapter 4, with its oldest member named Takeshi, who helps him investigate on the mysterious heat coming from inside the island.
- Living Battery: They get kidnapped and their body heat is drained from them to power the massive tsurugi Aharabaki. Kageaki rescues them, but then Ginseigo shows up.
- Mind Rape: They all fall victim to the mind altering powers of Ginseigo.
- Promotion to Parent: Takeshi, the oldest of the seven children have basically taken up parental duties after their father vanished, getting by thanks to fishing.
- "Shaggy Dog" Story: After all the hard work Kageaki put in in trying to save them, they end up affected by Ginseigo's song leading them to kill each other.
Rokuhara Scientist
Rokuhara Scientist
An unnamed scientist who works on a secret weapon for Rokuhara, in a hidden laboratory beneath Enoshima.
- Bad Boss: Upon learning that the trash crew had found intruders in the dumping ground, he asks why it took them and not the actual guards to catch them. Learning that the guards won't go near the place because they think it's haunted, he tells them they're all going in Aharibaki's batteries next time this happens, and this time he'll just throw their captain in.
- For Science!: He's just fine with the mountains of corpses he makes from testing Aharabaki.
- Geek Physiques: Averted in both directions as he's rather ripped.
- Human Resources: He has no problem with draining innocent people of their body heat until they die to power Aharabaki. No matter who.
- Mr. Exposition: As the main manager of the Arahabaki project, he knows how to control it and is forced to explain it at gunpoint to George Gargett.
- No Name Given: His name is never revealed.
- Sir Swearsalot: Pretty much each one of his sentences are littered to the brim with profanities and curses.
- Too Dumb to Live: When the man literally pointing a gun at you tells you to change the batteries in your flying weapons platform, back-sassing him is not conducive to your continued intake of oxygen.
- Walking Shirtless Scene: As you can see, the guy wears a lab coat without a shirt on underneath.
