Ultimo (manga)

Ultimo and Vice were created in feudal Japan to be "perfect good" and "perfect evil" as Dr. Dunstan's "last curse upon this world." A thousand years later, a monster wearing a Noh mask wreaks havoc in Farmless City of West Tokyo, while the S.K.A.T. Police unit cannot stop it. Ultimo plunges in to destroy the monster, explaining that the creature is about to show its true form, Vice, Ultimo's evil counterpart. The mechanical boys end their fight both badly damaged, and the movement of select groups around Japan begins.

Yamato Agari is a 21st-century reincarnation of a bandit from the Heian period. As in the past, Yamato meets the "Karakuri Dôji", mechanical boys, that transform his otherwise normal life into a battle of good versus evil. Immediately after Yamato meets the dôji Ultimo, another one called Vice appears, and he barely escapes from their fight. Now acquainted with Ultimo, Yamato is confronted by many other dôji, both evil and good.

Yamato's fights become increasingly dangerous as the fifteen prominent dôji meet on the day of the "Hundred Machine Funeral," the last day of the world as we know it. With imminent destruction at hand, Yamato uses Ultimo's ability to bring the world back to the day he first meets the dôji. In order to avoid the catastrophe from repeating itself, Yamato plans to learn for himself the meanings of "good and evil" by meeting each of the dôji himself.

Dunstan later reveals that the Hundred Machine Funeral isn't a fight to the death, which most of the doji believed; they are instead supposed to try winning a Good/Evil doji over to their side within a time limit. The side that has the most doji on it at the end of the time limit is the winner. Observing the contest for Dunstan is his own daughter.

Yamato Agari (東 大和, Agari Yamato)

Yamato Agari is the main protagonist of the series alongside Ultimo. Yamato has the same name and appearance as a bandit from the Heian period, whom he is reincarnated from. In the twelfth century, he considers the corrupt nobility evil and opposes them. He first meets Ultimo and Dunstan in this past life. The twenty-first century Yamato does not appear to be very bright, as his friends often joke about him. He is impulsive, and tends to yell when he speaks. Jealousy's heart-reading reveals that there is "something warm and peaceful" within Yamato.

Ultimo (ウルティモ, Urutimo)

Ultimo is a scarlet-colored Karakuri Dôji who personifies ultimate good. Ultimo first meets Yamato in twelfth century Japan (though he is created in the thirtieth century from which Dr. Dunstan travels). He cares deeply for his master Yamato and tends to react emotionally over his safety, becoming a deadly threat to his enemies. During Yamato's original life, Ultimo was tricked into killing his lover, Lady Gekko; as a result, he hides this fact from the reincarnated Yamato. As a dôji, Ultimo has oversized, transforming gauntlets, mediums for his Noh powers. Ultimo's transformations are modeled after cranes or lions, and he has the power to control time and space.

K (ケー, Kē)

K is one of main antagonists and a former member of the S.K.A.T. Police, then called "Agent K." K quits his job once becoming the Vice Master, and relies solely on Vice to steal for his living. He usually has a creepy demeanor, but sometimes bursts into pitiful rages. K is admittedly weak, and could faint quickly in a direct fight. K favors saying "crazy!" to describe something he sees.

Vice (バイス, Baisu)

Vice is the green-clothed Evil Dôji Socho, representing ultimate evil, and as such shares the main antagonist role with K. Vice carries much disdain for Ultimo and his actions, since they interfere with his violent intentions. His clawed, green gauntlets become weapons through his Karakuri Henge, usually resembling a turtle, and always with bladed edges. He intends to kill Dunstan to allow him and the other evil Doji to rule the earth. His noh is "Incompetence", which is considered the ultimate evil; he causes an explosion, leaving nothing behind.

Jealousy (ジェラス, Jerasu)

Jealousy is a blue-themed Karakuri Dôji, representative of envy of the Seven Deadly Sins. Compared to the other dôji, Jealousy is rather stoic by nature, viewing Ultimo as a hypocrite for representing good despite being so violent. Jealousy sees no problems with killing, and consistently does so to Tomomitsu Iruma (入間 智光, Iruma Tomomitsu), his master's various reincarnations from the twelfth through into the twenty-first century, for his shallow ideas of evil. His Karakuri Henge resemble spiders, and he has the power of telepathy. Jealousy desires to have Yamato for his master, since he is highly incompetent. In the literally rebooted present day, Jealousy chooses Rune as his master; the second time, as both mutually desire Yamato, though for different reasons.

Roger Dunstan (ロジャー ダンスタン, Rojā Dansutan)

Dr. Roger Dunstan is the Stan Lee-esque creator of Ultimo and Vice who travelled back from the year 2989. Along with Ultimo and Vice, he created the one hundred Karakuri Dôji as an experiment in order to find out which is ultimately stronger, good or evil, eventually culminating in the "Hundred Machine Funeral". From his experiments, Dunstan has control over all elements and dimensions, and thus theoretically is capable of anything imaginable. He also possesses the dôji Milieu (ミリュー, Miryū), the embodiment of moderation, who can control the time periods into which people are reincarnated; Milieu also shares Dunstan's desire to find out if good or evil is the most powerful, being neutral in the balance between both. Though it appears the Doji master selection is left up to random or opportune choice, Dunstan is revealed have precisely calculated which people to have as or be possible masters to his creations; Milieu said as much when they saved future Yamato from being killed by Jealousy in the past.

Shin Ekoda (江古田 新, Ekoda Shin)

Shin "Eco" Ekoda is a 38-year-old sushi chef at his restaurant Eco Sushi (エコ寿司, Eko Sushi), and is also a member of the Club of Good Dôji, led by Yamato. Eco reads Weekly Shōnen Jump comics as his "scriptures", a trait from being a monk in his past life; he explained to Musashi that reading them will explain why Yamato is the best choice to lead the Club of Good Doji. His dôji Regula (レグラ, Regura) represents discipline of the Six Perfections, possessing the power to alter memories in order to keep the Karakuri Dôji secret from the rest of the world.

Musashi Murayama (村山 武蔵, Murayama Musashi)

Murayama is a police officer from the future that followed Dunstan into the 21st century. His goal is to capture the criminal Dunstan for his illegal dimensional studies. His Karakuri Dôji, Sophia (ソピア, Sopia), represents wisdom of the Six Perfections; Sophia became pledged to Musashi when Dunstan used him as a shield. He has thoroughly studied Dunstan's motives, knowing that the old man is clever enough to take into account the possibility of Good Doji masters refusing to participate in the Hundred Machine Funeral.

Rune Kodaira (小平 ルネ, Kodaira Rune)

Rune is Yamato's friend and classmate. He acts collectedly, and often shows concern for Yamato. During the Heian era, he was originally a young noblewoman, Lady Gekko, who held romantic feelings toward the bandit Yamato. Reborn as a man in the present, however he still holds hidden feelings for his friend which have bloomed into a secret obsession with keeping Yamato to himself. Rune is deeply in love with Yamato and keeps a massive portrait of him portrayed in a way that implies that Rune stalks Yamato outside of school. Because of this, along with Yamato's infatuation with Makoto Sayama, Rune's deep-seated envy causes him to become the new master of the dôji Jealousy and to oppose Yamato. Rune is prime example the Milieu's ability to control reincarnation is not perfect; Rune is a different gender in his present life.

Makoto Sayama (狭山 真琴, Sayama Makoto)

Makoto is a girl who goes to the same high school as Yamato Agari. She is the target of Yamato's affections through the series. After Eco's death, she becomes Regula's new master with memories of her past life just like the other Doji masters. She is later revealed to be Roger Dunstan's daughter, who is overseeing the Hundred Machine Funeral in his place. Her actual name is Makoto Saya Dunstan (真琴・サーヤ・ダンスタン Makoto Sāya Dunstan) and, while fully aware of Yamato's crush, she finds him to be annoying and very much beneath her.