User blog:SPARTAN 119/The Killer Girl Next Door: A Manga Horror Battle Royale: Rena Ryuguu vs Mai Mashiro vs Rio Miyaichi vs Satsuki Miya

Rena Ryuguu, the ordinary girl turned machete-wielding killer by an insanity-causing virus

VS

Mai Mashiro, the serial killer and snuff filmer who hides behind the facade of a Japanese schoolgirl

VS

Satsuki Miya, the girl who was kidnapped by a psychopath, but later aided him in his schemes in a bizarre form of Stockholm Syndrome

VS

Rio Miyaichi, Japan's "female Dexter Morgan", who lures her criminal-victims into her apartment to die

Four "girls next door" who hide a secret thirst for blood, but...

WHO IS DEADLIEST?!

=Rena Ryuguu=

"If you want to kill someone, you should be prepared to die yourself!"

- Rena Ryuguu, shortly before killing a psychotic villager in the OVA

Rena Ryuguu is a girl from Hinamizawa, Japan, who lived in Ibaraki prefecture for a period of time, until she went on the rampage around her school, smashing windows with a baseball bat. Rena's rampage was caused by an illness local to Hinamizawa, the Hinamizawa Syndrome, which manifests itself in violent behavior, delusions, paranoia, and eventually suicidal behavior in severe cases. Higurashi takes place through several story arcs, each with a different retelling of of the plot, some featuring Rena as the murderer and some as the victim. Rena's preferred weapon is a machete-like tool, called a nata.

Nata
The nata is a Japanese tool similar in appearance to a meat cleaver, though its use is more similar to that of a machete or a billhook. The nata is used as a general purpose agricultural and outdoor cutting tool used for cutting brush, chopping wood etc, though it can obviously be used as an improvised weapon.

Metal Pipe
When her nata is not available at one point in the anime, Rena has been seen to use a length of metal pipe about three feet long to defend herself. The pipe was found in an old garbage dump, which Rena has a habit of "treasure hunting" in.

Glass Shard
As well as the metal pipe, Rena is depicted in the anime using a shard of broken glass about 4-5 inches long and two inches wide, likely broken off a window pane, as an improvised weapon when she was attacked in the garbage dump.

=Mai Mashiro= "That's right, I committed the crime, but I'm not the one who gets punished... because I'm a winner"

- Mai Mashiro

WARNING, THIS ARTICLE DESCRIBES GRAPHIC VIOLENCE AND MATURE CONTENT

Mai Mashiro is a major character in the 2014 manga Dead Tube. Mai is a teenage girl in her high school swim club who approaches series protagonist and film club student Tomohiro Machiya and asks him to film her constantly for the next two days. Mai has him film her swimming, with friends after school, and even in compromising situations, such as in the shower or even going to the bathroom. Mai even has him film her all night while she is asleep Along the way, Mai behaves seductively and strongly implies attraction to Tomohiro. Mai reveals a boy named Yamamoto who bullied Tomohiro in middle school to be a her boyfriend, however, he keeps filming as Mai goes on a date with her Yamamoto and even enters an abandoned factory and starts to have sex with him. Before the Yamamoto can complete the act, however, Mai seizes a metal pipe from the floor of the factory and brutally clubs him to death. Tomohiro is strangely transfixed by the scene, and realized to his horror that he is aroused by the murder. Mai, still nude and covered in her victim's blood, asks Tomohiro to stand still and kisses him, before taking the memory card from his camera.

Tomohiro meets Mai the next day at school, and she tells him that she has managed to frame an innocent man for her crime, and also declares herself to be Tomohiro's lover. She also pays him five million yen for his camerawork and tells him to continue working with her as a camera, this time to film the head of his film club, a girl named Oushima Sanagi for five days, claiming she will commit suicide after five days.

During a field trip attended by the entire film club, along with Mai, Tomohiro films them, until one day until Oushima's death. Throughout the field trip, Oushima seduces Tomohiro. On the last day of the drip, Oushima takes Tomohiro aside and states that she received a text and photos from Mai showing her boyfriend murdered, as well as three boys in the film club. Mai also states that she had Mizuno, a girl from the film club raped by three male accomplices. The text warns that if Oushima does not commit suicide in two days, more of her friends will die. Oushima and Tomohiro formulate a plan to ambush and kill Mai the next day on the roof of the school. Shortly before enacting her plan, Oushima confesses her love for Tomohiro and kisses him.

The next day, Mai visits the roof of the school, and sees Oushima about to commit suicide, but then shocks everyone by revealing she knows Tomohiro is hiding behind the door. At that moment, Mizuno tackles Mai to the ground and demands that Tomohiro kill Mai now, stated that she is behind her rape and the other boys murder. Mai, however, managed to recover and tosses Mizuno at Oushima, pushing Oushima off the building. Tomohiro attacks Mai with a baseball bat, and clubs her to death. Moments later, however, Oushima appears from the stairs, perfectly alive, and states she landed on a soft awning set up a floor below, and the dead body on the ground was actually a girl she and two accomplices had kidnapped and thrown from the window. At the same time, the two male accomplices reveal themselves, and Mizuno reveals she was an Oushima's accomplice as well. Oushima states that Mizuno killed a random person, who was not really her boyfriend, and even, more bizarrely, Mizuno allowed herself to be raped by three boys in the film club, who were in on the scheme, and were later murdered by Oushima. Oushima then reveals her true "love" was not a person at all, but her obsession with producing amateur snuff films and uploading them to a site called "Dead Tube". She also reveals her interest in Tomohiro is a lie, and that she is sexually involved with both of her male accomplices. She then asks for Tomohiro's last words.

Tomohiro responds "Too bad", and Mai apparently rise from the dead, drawing an awl and a collapsing baton, and brutally murders all of Oushima's accomplices. Oushima picks up Tomohiro's baseball bat, and attempts to defend herself, only to discover it was actually a foam bat covered in bandages filled with fake blood- Mai faked her own murder. Mai hits the bat hard enough to break it with her baton. Oushima desperately undresses and offers Tomohiro sex in exchange for his life. Mai tells her she will spare her life if she kneels before Tomohiro and licks his boots. Mai quickly reveals she is lying, that she and Tomohiro had planned all of this and seizes Oushima and hangs her by the ankles from the school building and cuts the rope, causing her to fall to her death. The film is then presumably uploaded to "Dead Tube".

As of now, the manga is ongoing.

Meat Cleaver
A meat cleaver is a large knife with a rectangular blade. The primary purpose for the knife is for cutting through meat and bone. As such, the knife has a heavy blade for cutting, but no point. While it is not intended to be used as a weapon, like the Kitchen Knife, the fact that it is a common knife and has a heavy blade capable of delivering heavy strikes that can cut through flesh and bone mean that the weapon is sometimes utilized as a murder weapon.

Collapsible Baton
Mai uses a collapsible police-style baton as a melee weapon. The baton itself is about 16 inches long, made of metal. In spite of its collapsing design and designation as a "less lethal weapon", the baton can be used to strike with enough force to cause serious, or even fatal injury, something Mai does to multiple victims on the school rooftop when confronting Oushima and her accomplices.

Awl
An awl is a tool used for making holes in wood or leather, consisting of a steel spike and a typically wooden grip. Mai uses the awl as an improvised stabbing weapon, using to brutally thrust at any weak point, including the chest and eyes. =Satsuki Miya= Satsuki Miya is a major character in the anime Denpa Teki na Kanojo, specifically one of the main antagonists of the first OVA. Satsuki was a normal girl in a major Japanese city (possibly Tokyo) until she was raped by her next door neighbor, a man named Kakura Kiyoshi. Kiyoshi revealed he was a serial killer, claiming to be a "government agent sent to assassinate aliens living among us disguised as humans". In a sort of "Stockholm Syndrome", Satsuki became attached to the Kakura in spite of his assaulting her, seeing him as a sort of older brother figure. Satsuki followed Kakura on his killings, photographing the victim immediately before and after Kakura murdered them with a baseball bat. Satsuki discovered she got a thrill out of photographic her victim's last minutes, and later started posting the photos on anonymous online message boards. On one of these killings, Satsuki thought one of the victims might have been merely unconscious after Kakura beat them with a baseball bat, so Satsuki took a piece of wire and used it as an improvised garrote, strangling the victim. This act made Satsuki more sadistic, and it became standard practice for her the "finish off" the victim by strangling them after Kakura beat them.

At the same time, Juu Juuzawa, a delinquent high school student, discovered a girl from his school named Kanako Fujishima murdered, having been beaten and her body hanged by the neck with a wire. Juuzawa was led into investigating the murders by a girl named Ame Ochibana, an odd girl who claimed the be his "guardian", claiming he was a king and she a knight in a past life (Juuzawa did not realize at the time that she was a childhood friend, and "past life" was a game they played as children). Ame discovers that all of the serial murders took place on a rainy night, and theorizes that the culprit views the probability of precipitation in weather reports as his probability of success.

Juuzawa is given a note telling him to meet someone on a night with a high probability of precipitation at a nearby park. He meets Kakura, who he accuses of being the killer. Kakura confirms his accusation, giving his story of being ordered by the government to assassinate aliens. Juuzawa attempts punch Kakura, but Kakura fights back with much greater skill than Juuzawa, appearing to have some martial arts training. Kakura strikes Juuzawa in the mouth, knocking a tooth out. Juuzawa literally spits the tooth right into Kakura's eye, hard enough to incapacitate him, while Juuzawa places his watch around his fist like a a set of brass knuckles, and punches him in the face, before binding Kakura with his belt and (presumably) summoning the police. Ame arrives on the scene shortly after Juuzawa disabled Kakura, disappointed that she was unable to fulfill her role as his "knight".

At school the next day, Satsuki invites Juu to eat lunch with her in an empty classroom, where she gives him a soda that has been laced with a sedative, which, while it fails to knock Juuzawa completely unconcious, it does stop him from moving his legs. Satsuki then locks both doors to the room and closes the curtains on the window, before she picks up a baseball bat and strikes Juu repeatedly in first in the arms, then in the legs, breaking all four limbs. Satsuki then confesses her role in the serial murders, and then proceeds to start taking photos Juu, like she did with her victims.

Ame, however, hears Juu's screams and forces her way into the classroom, armed with a stun gun, and shocks Satsuki with it, causing her to collapse to the floor. Ame then helps Juu to his feet, apologizing for not being able to get to him in time. Satsuki, however, recovers from the effects of the stun gun, and gets out a boxcutter knife and charges at Ame. Juu, however, jumps in front of Ame, taking the stab wound for her. Ame then gets out her stun gun and disables Satsuki a second time, before presumably (it is not explicitly shown in the anime) summoning police and paramedics. Satsuki is arrested, and Ame is later seen visiting Juu in the hospital.

Baseball Bat
The baseball bat is a club-like "tool" used in the sport of baseball. The MLB regulations for a baseball bat are 2.75 inch diameter and a length of 42 inches or smaller. Many are not corked or hollowed out, because it reduces its weight and increases speed. In high school leagues and Little Leagues, bats are made of aluminum or other metals because of the lethality of a broken bat flying at a player or the audience. The bat is intended to be used in baseball and not as a weapon. However, the baseball bat has become a staple weapon for mobsters and rioters. It is a simple bludgeoning weapon that can inflict pain, shatter bones, and kill.

Boxcutter
A boxcutter is a very short-bladed, sharp knife intended for, as its name suggest, opening cardboard boxes, but is also often used for other general cutting purposes. The boxcutter is obviously not intended as a weapon, but it can be used as such, generally most effectively by cutting the throat, as the weapon's short blade makes a poor stabbing weapon, in spite of its sharpness.

Garotte
A Garrote is a weapon used to strangle a target, by either cutting the wind pipe or cutting off air. They can be made from piano wire, a rope, or even a scarf. If it cuts off blood flow to the brain, it can kill in under 5 seconds.

=Rio Miyaichi= "I'm just a cute little thing next to Mao or Pol Pot"

- Rio Miyaichi

Rio Miyaichi is one of the main characters of the 2014 manga Ana Satsujin. The protagonist, Etsuro Kurosu, an unemployed college dropout first observes Rio after a failed attempt to hang himself pulls a hook out of the wall and makes a small hole. Kurosu sees into Rio's apartment, and spends several days peeping on Rio, until he witnesses an attempted rape ending in Rio killing her would-be attacker with a boxcutter. Kurosu literally faints from the shock of witnessing the incident, but later goes over Rio's apartment to see if she is OK. She greets Kurosu warmly and cooks for him. Over time, Kurosu and Rio grow closer. In this period of time, Kurosu discovers that Rio is a serial killer, regularly luring men into her home with promises of sex, then sedating, murdering, dismembering them with a boxcutter. Rio later discovers Kurosu has been spying on her, but does not kill him, instead seeing him as the only person who accepts her for who she really is. Kurosu and Rio become a couple. On a date with Kurosu at a baseball game, Rio states that killing comes as naturally to her as living itself, and that, as a rule, she only targets criminals. It is strongly implied that Rio cooks and eats her victims after killing them. Kurosu later witnesses Miyaichi murder one of his old acquaintances, Yamagiwa, from high school, and wants to know why she committed the murder. Rio is not there, but Kurosu finds out that Miyaichi has a "kill list" in a notebook, and his name is on the list, along with a motive. Both Kurosu and Yamagiwa were targets because they witnesses Rio's crimes. Shortly afterwards, Kurosu is sedated and wakes up in the trunk of a car along with Yamagiwa's body. It turns out that Miyaichi does not actually cook her victims, or at least not all of them, instead selling them to Reina Enmeiji, an interior designer who makes furniture out of human body parts... who incidentally is also as nudist and either a hermaphrodite or a transexual. Reina attempts to kill Kurosu, but Miyaichi intervenes, stating that she is going to be the one who kills him.

Novelty Mini-Baseball Bat
OK, I'm cheating a bit on this one, Rio Miyaichi is seen holding a novelty mini-baseball bat on her date with Etsuro Kurosu, but has, thus far, never killed with it. However, she will have the weapon with her. The mini-bat will be assumed to be solid wood and about a foot long, still more than heavy enough to use as a blunt instrument.

Boxcutter
A boxcutter is a very short-bladed, sharp knife intended for, as its name suggest, opening cardboard boxes, but is also often used for other general cutting purposes. The boxcutter is obviously not intended as a weapon, but it can be used as such, generally most effectively by cutting the throat, as the weapon's short blade makes a poor stabbing weapon, in spite of its sharpness. The boxcutter is Rio Miyaichi's favored weapon, which she uses to cut the throat.

Sedative Syringe
While she often lures her victims into her apartment, often with offers of sex, and kills them while they are fully concious, Rio has been known to use a syringe of fast-acting sedatives capable of knocking out an adult male on those who are... less willing... Rio will have one syringe with her for the purposes of this match.

=119's Edges=

Primary Weapons

 * First Place: Rena's Nata for its heavy weight, giving it the power to easily chop through flesh and bone, as well as its greater reach than the meat cleaver
 * Second Place: This one is a tough one- the baseball bat has the advantage of length and weight, but the meat cleaver has a deadly cutting edge. In the end, however, I give this to the Baseball Bat for its greater length and hitting force, which may allow Satsuki to disarm Mai's cleaver.
 * Third Place: Mai's Meat Cleaver takes third for its sharp edge, but lighter weight than the nata, making it more prone to disarms, and meaning it strikes with less force.
 * Fourth Place: Rio's Novelty Mini-Baseball Bat, as while it is heavy enough to use as a club, its lighter weight and shorter reach mean it won't stand up to the full-sized bat, and may even be broken by Rena's nata.

Secondary Weapons

 * First Place: Mai's Nightstick as it is actually designed with combat in mind, intended to parry weapons such as knives and baseball bats, as well as deliver disabiling strikes, which can be fatal if used in what the police would call an "improper manner"... just the manner Mai specializes in.
 * Second Place: Rena's Metal Pipe for its reach and greater force of impact.
 * Third Place (tie): Rio and Satsuki's Boxcutter, as it has a small blade and is only likely to be immediately lethal if aimed at the throat.

Special Weapons
=X-Factors=
 * First Place: Rio's Sedative Syringe, as, while it may only have one dose, it will allow her to take a particularly dangerous enemy out of the fight quickly.
 * Second Place: Mai's Awl for its lethal potential as a stabbing weapon, which she is skilled in dual-wielding with collapsible nightstick.
 * Third Place: Satsuki's Garrote, as it is not as fast-acting as the sedative, requires stealth to use, and leaves her vulnerable to attack from behind.
 * Fourth Place: Rena's Glass Shard as it is easily shattered.

Explanations
In terms of combat experience, Rena is the one who has engaged in the most direct physical combat, most notably when she clashed against Keiichi Maebara on the school roof, and when she killed Rina Mamiya in self-defense with the metal pipe. Mai is second place, having five multiple people who tried to defend themselves, however, all of them were unarmed or inadequately armed (with a foam bat Mashiro herself used to fake her own death), giving her second place. Both Satsuki and Rio, however, primarily kill their victims when they are unaware or incapacitated. Homicide experience differs from combat experience in terms of how long they have been killing and evading police. Rena takes last place, as she is truly more of a spree killer than a serial killer, killing one or multiple victims in one violent killing frenzy. On the other hand, Mai, Satsuki, and Rio all can be considered true serial killers, attacking multiple victims at intervals, often one at at a time. Satsuki, however, has only actually killed a few people, and in that case, usually those wounded by her more experienced killer accomplice. Mai, and in particular Rio, are implied to have been killing for longer. In terms of agility, Rena and Mai both demonstrate considerable agility, allowing them to rapidly counter and evade an enemy's attack, and, in the case of Mai, attack multiple victims at once. Satsuki and Rio often surprise or drug their victims, so, while they no doubt can move quickly when forced to, they do not have the experience that Rena and Mai do. In terms of stealth, Rena is a very overt killer, only really sneaking up on her victim once. Mai, Satsuki, and Rio, on the other hand, all use elaborate ploys to lure her victims to their demise, they are ranked in order of experience- Satsuki being the least experienced, and Rio the most. In terms of killer instinct, all four will kill without hesitation, whether due to their mental illness (Rena), or for their own sick desires (Mai, Rio, Satsuki). In terms of mental health, Rena scores the lowest the delusions caused by her Hinamizawa Syndrome. The other four are classic sociopaths, but are, at least in touch enough with reality to avoid drawing police attention, while Rena's overt actions- specifically attempting to firebomb her school were discovered. =Notes=
 * Vote for the final winner, and also vote on the order the combatants will go down.