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Yaiba Kurogane

Voiced by: Minami Takayama

https://static.tvtropes.org/pmwiki/pub/images/Yaiba_Kurogane_3021.jpg

The young protagonist, Yaiba is a strong-willed, easy-going but often cocky kid who was trained by his father Kenjuuro in order to become a great Samurai. After leavng the jungle and returning to Japan, he starts his adventures and the struggle against the wicked Onimaru. Apparently, Yaiba is the chosen warrior able to wield the Raijin Sword without being zapped. Trained by Miyamoto Musashi and with the help of his friends and various magical powers, he fight off the menaces that threat the Earth. As the series proceed, he slowly matures.

  • Air Jousting: Whenever he has to face an enemy capable of flight. Usually a courtesy of his pet vulture, Shonosuke
  • Ancestral Weapon: The swords he use tend to be really old and powerful. In the last arc he's equipped with his father's Bokken (wooden katana)
  • Anime Hair: A classical example, inherited by his father.
  • Attack of the 50-Foot Whatever: He can use the power of the Giant Orb to increase his size
  • Bad Ass Boast: Ok, maybe not really badass, but he surely can boast
  • Barrier Warrior: With the Ryujin Sword
  • Battle Aura: When using a magical sword. Also the Toujin, which allows him to storm the opponent with a flow of invisile slashes.
  • Big Eater: Though mostly early on, as later arcs tend to shift to a more serious tone.
  • Blow You Away: When using the Fujin Katana and the Supreme King Sword.
  • Calling Your Attacks: Each and every attack.
  • Chick Magnet: At school he seems to be quite popular with girls...
  • Combat Pragmatist: He's not above tricking his foes, inventing new techniques on the spot and so on. Justified, since he learned by Musashi himself. And also because his enemies are not nice guys.
  • Cool Sword: First he gets to wield the Raijin Sword, which later learns to turn into the Ryuujin Sword with the Ryuujin Orb. Eventually he dual wields it with Onimaru's discarded Fuujin Sword and later merges it to obtain the Supreme King Sword.
  • Curb-Stomp Battle: He delivered one against the revived Batman in the Onimaru's Fortress Arc.
  • Death of a Thousand Cuts: His One-shot Doshaburi Giri attack (lit. Deluge Slice) consist in tossing several kitchen knives at the foe from above
  • Demonic Possession: When he loses control of the Raijin Orb he turn into a Psycho Electro Oni. He manage to master it later and avoid possession.
  • The Determinator: A Earth-Shattering Kaboom is the least you need to stop this little guy!
    • Brought to extreme levels in the last arc, where he manages to force the far more skilled Soshi to give up by sheer determination.
  • Diagonal Cut:
    • His Kaminari Giri (Lightning Slice) attack, which leaves a lightning-shaped trail.
    • Also his Juumonji Giri (Cross Slice), which doubles with Power Glows and Dual Wielding
  • Dual Wielding: During the Pyramid Arc.
  • Elemental Powers: He wielded many during the Ryujin arc, including: Making a Splash, Kill It with Fire, Casting a Shadow and Kill It with Ice
  • Everything's Better with Spinning: His Senpuken (Whirlwind Sword) consist in removing the Thunder Orb from Raijin's Sword and use the hole left to make it spin at great speed. Also the Kazaguruma (Pinwheel) attack is this.
  • Expy: Acording to Aoyama himself, Yaiba was modeled after Teppei Uesugi from Ore wa Teppei
  • Heroic BSoD: After his defeat at the hand of Demon Onimaru. And later after being almost killed by Gekko.
  • Idiot Hero: He's quite a dumbass, but can come up with smart strategies.
  • Infinity +1 Sword: The sword of Ryuujin. The Supreme King Sword and, in the ending post- Time Skip, the Kusanagi sword.
  • Light 'em Up: The Supreme King Sword. Apparently the Kusanagi blade in the stinger, which can fly fast enough to reach Mars from the Earth in mere seconds.
  • Noodle Incident: In the epilogue he and his friends (Musashi, Kagetora and Shonosuke) ended up on Mars where they were attacked by a monstrous demon alien. Oh, and he acquired the Kusanagi sword from Okinawa too.
  • Made of Iron: Jeez, this boy is really something.
    • Harmless Electrocution: Survives being hit by a lightning bolt, which makes Musashi realize that he's ready to master the Raijin Sword.
  • Meaningful Name: Translated, and accounted for name order, his names means Blade Iron.
  • Never Recycle Your Techniques: Whenever his current attack/fighting style isn't good enough, he soon discard it. However he uses his very first technique before dealing the final blow to Onimaru.
  • Nice Job Breaking It, Hero!: His Jerkassness is the main reason why Onimaru decided to resort to the Fujin Sword to beat him. Also at the end of the Ryuujin Arc.
  • No Social Skills: He is not good at handling everyday situations. He grew up in a jungle with only his father to learn from. He can however speak with animals.
  • Red Oni, Blue Oni: Red Oni to Onimaru's Blue Oni.
  • Shock and Awe: When wielding the powers of Raijin he can shoot electrical beams from his sword and electrify enemies.
  • Super Mode: He got several of them, usually using the power of the currently wielded sword.
  • Sword Beam: When using one of the magical blades.
  • To Be a Master: His goal is to become the strongest in the world.
  • Unstoppable Rage: Briefly during the Ryujin Trials. Also after Emerald and Ryujin's deaths.
  • X-Ray Sparks: Every episode's eyecatch when he gets zapped by lightning.

Sayaka Mine

Voiced by: Kotono Mitsuishi

Sayaka is the daughter of Raizo Mine, an expert kendoka and old rival of Yaiba's father, Kenjuro. At first she sees Yaiba as an annoying brat, but their relationship improves as the series proceed and she travels with the young samurai in his journey to defeat Onimaru. She also carries the Sea-Cucumberman with her. Later in the Kaguya arc, it's revealed that she's the descendant of Taro Urashima and Princess Oto, and thus the new "Dragon Maiden", the Priestess of Ryujin and the key to unleash Kaguya's true form. In the last arc, she manage to wield the Water Demon Longsword and use its powers, and later, in order to stop Orochi's rampage, has Kaguya sealed into her body... and manage to restrain her and slowly change her heart.

  • Aw, Look! They Really Do Love Each Other: She and Yaiba quarrel quite a lot, but once in a long time they share tender moments.
  • Barrier Maiden: As the "Dragon Maiden" whose Life Energy Kaguya needs the most, and the descendant of two legendary figures from Japanese Myths (Taro Urashima and Otohime).
  • Beauty Is Never Tarnished: Granted, she doesn't get in many fights herself..
  • Clingy Jealous Girl: Towards Emerald in the Pyramid Arc
  • Distressed Damsel: Happens quite often, but only in the earlier arcs. She upgrades to an Action Girl
  • Heroic Sacrifice: At least three times, the first one in the fifth trial of Ryujin, the Rope of Fate, in order to show Yaiba the right one. The second time when she decided to go with Gekko in order to save Yaiba's life. Then, she accepted to have Kaguya's Ghost sealed into her body in order to force her to help Yaiba against Orochi and Onimaru.
  • Making a Splash: When she uses the Water Demon Longsword.
  • Paper-Thin Disguise: During the Kojiro arc, in order to escape some Mooks she put on Sunglasses, an earring and a fur hat and behaved like a Japanese comedian. It worked even with her mother!
  • Plucky Girl: One cannot say this young woman gives up easily.
  • Sailor Fuku: albeit with a long skirt.
  • She Is All Grown Up: After the three year timeskip in the epilogue.
  • Tsundere: Type 2. She's a rather nice kid, but Yaiba can easily set her off.

Kagetora

voiced by: Hisao Egawa

Yaiba's pet Tiger, he's just a fat, gentle tiger and behaves more like a huge housecat than a proper tiger. He carries Yaiba and the others around on his back and sometimes helped him in his trainings. He's also smarter than Yaiba.

Shonosuke

voiced by Ryo Horikawa

Yaiba's pet Vulture follows him around and is used whenever he needs to fly. Also he's responsible for beating Onimaru's pet pidgeons, increasing his hatred towards Yaiba.

Musashi Miyamoto

voiced by: Masaharu Sato

https://static.tvtropes.org/pmwiki/pub/images/Musashi_7590.jpeg

Miyamoto Musashi is a 400 years old man who lived as a hermit on Mount Tengu, where the Raijin Sword is kept. After witnessing Yaiba pulling the sword out of the ground he agreed to become his master and teach him the way of the sword. Despite the age he's still a powerful warrior and more than capable of kicking some ass. He also know a lot of techniques and strategies, and he can be very wise.

  • *Crack!* "Oh, My Back!": A couple of times early on, he's stopped from defeating the current enemies by a sudden backache.
  • Curb-Stomp Battle: When Yaiba turned into a crazy Oni for the first time, he knocked him down with a single strike. Wooden stick beats Lightning!

Gerozaemon Geroda

voiced by: Kazunari Tanaka

A Former Hakki, Gerozaemon is the first of them, and he's a Frogman. He was sent by Onimaru to kill Yaiba, but he got defeated and joined his group. Despite being a Oni, he's a really good fellow and a good chef. He often fights alongside Yaiba and the others with his trusty hatchet and his tongue. After Onimaru and Orochi's defeat he turned back into a frog.

  • An Axe to Grind: His weapon of choice, though most of the time he either uses his tongue or bare hands.
  • Chef of Iron: Well, he's stronger than the average human and can make an excellent Sukiyaki (a sort of stew).
  • Enemy Mine: He and Musashi briefly teamed up in order to stop a possessed Yaiba.

Kojiro Sasaki

voiced by: Jurota Kosugi

https://static.tvtropes.org/pmwiki/pub/images/Kojiro_635.png

Musashi's old rival, this master swordsman was resurrected by the Spiderman in order to become Onimaru's servant. Bent on taking revenge on Musashi, he later sees a new rival in Yaiba who manage to beat him with the power of Raijin. He the decide to follow Yaiba in order to steal his magical sword, but ends up as a stationary member of the group. He wields a magical Katana named Monohoshizao (lit. Laundry Pole), and its blade can stretch at will on command. He joins the Oda Nobunaga Tournament in the last arc but is defeated along the way by Onimaru.

  • Put on a Bus: During the Legendary Orbs Quest arc he was hilariously defeated by Jubei, who took his place.
  • Red Eyes, Take Warning: He has red eyes, but he's not really evil.
  • The Rival: To Musashi.
  • Time Master: It's revealed that his sword can create portals through time, but he keep this power sealed within the handle using wrappings made from a lion's mane.

Jubei Yagyu

voiced by: Takaya Hashi

One of the Seven Swordsmen revived by Lord Onimaru, Jubei is a wandering Ronin and pupil of Musashi himself. He's a man of honor and a very serious samurai, and a skilled swordmaster. However when he gets drunk he turn into a violent Wolfman who attacks anyone in sight. He's also prone to try to commit Harakiri quite often. He's last seen in the Oda Nobunaga Tournament where he fight Yaiba for one last time. Three years later, he's Walking the Earth.

  • Brainwashed and Crazy: During the Kaguya Arc he's merged with the Moon General Hangestu who take over his body in order to assassinate Yaiba.
  • Booze-Based Buff: If he gets drunk he turns into a Werewolf
  • Chaste Hero: When they rescue the girls from Kaguya's base they all fall for him, though he seems pretty clueless about it. In a later omake chapter he claims that attraction to women is a distraction for those who follow the way of the sword.
  • Nice Hat: He often wears a large straw hat.

Emerald

A mysterious hooded girl appeared in the Pyramid Arc. She saves Yaiba and heal him with her powers. Later she guides Yaiba&co inside the Pyramid (which she seems to know quite well) and help Yaiba against the various foes inside. She's actually revealed to be the Barrier Soldier, one of the four top class Soldiers, ans a Cyborg, created to lure Yaiba inside the Pyramid. However for some reason she sides with Yaiba instead of betraying him. She's blasted into pieces by the Pyramid Core's Lasers defending Yaiba.

  • Barrier Warrior: She can heal people and create powerful barriers capable of repelling any attack. She IS actually the Barrier Soldier

Moroha Kurogane

A mysterious and very rich girl who appears in the last arc and introduce herself as Yaiba's little sister. She tells Yaiba about his "impostor" father Kenjuuro and state that he'll meet him in the Oda Nobunaga Tournament. She later follows Yaiba on Yoroi Island and witness his battles in the Tournament.

  • Combat Pragmatist: At least Yaiba knows when to hold his strength, but she says that a true samurai should use all his strenght in any battle
  • Defrosting Ice Queen: As she sticks with Yaiba, she quickly mellows down and learn that a Samurai isn't always a killer.
  • Implausible Fencing Powers: She can knock several adult men unconscious in mere seconds, using a Shinai.
  • Lightning Bruiser: See above. She accomplished said feat in a few seconds
  • Tsundere: Usually quite cold and bitchy, but has also shown a more tender side of herself.
  • Tyke Bomb: She trained herself from a very young age in order to beat Kenjuuro's Killer, who she identifies as Yaiba's Dad.

     Onimaru's Main Faction 

Takeshi Onimaru

voiced by: Ryo Horikawa

https://static.tvtropes.org/pmwiki/pub/images/Takeshi_Onimaru_7875.jpg

The Big Bad of the series, Onimaru was just a student and a really skilled and no-nonsense kendoka. Eventually, Yaiba manage to humiliate him in an attempt to challenge him and eventually they become bitter rivals. Obsessed with beating Yaiba, Onimaru discovers in a secret cellar of his house the Legendary Fujin Sword, and attempt to master it, turning himself into a powerful and large Oni bent on killing Yaiba and conquering the whole World. He has displayed many powers, and has attempted many plots to Take Over the World. During the Kaguya arc he was forced to join forces with Yaiba. After getting the Devil King Sword he starts his plans of destruction by tricking the Underworld people and awakening the legendary dragon Orochi but eventually is vanquished once and for all by Yaiba who cut off his horns. He was then Put on a Bus, that came back just in time to put him as Final Boss of the Oda Nobunaga Tournament.

  • Battle Aura: Like Yaiba above. And even him can use the Tojin attack.
  • Big Bad: Until the Orochi Arc.
  • Blow You Away: Expecially his Tornado Attack, which once drilled throught the earth surface!!
  • Brainwashed and Crazy: Does his to the Japanese government members. Ironically, it's revealed that he was like this the whole time.
  • Breakable Weapons: His Fujin Sword is broken by Yaiba's Thunder-enhaced Kaminari Giri, but it's repaired later.
  • Brought Down to Normal: He's eventually fred by Fujin's influence.
  • Calling Your Attacks: Rarely, including the Fujin Ha (Wind Devil Wave), the Tornado attack and all the Devil King Sword attacks.
  • Casting a Shadow: Can use dark demonic powers. Later he aquires the Devil King Sword
  • Charles Atlas Superpower: Even before becoming a demon, he was strong enough to crush concrete pipes with a bamboo sword. Afte Kenjuuro's training he can put all his power in a single slash, resulting in a swordstrike capable of flattening a steel armor and everything around it.
  • Cool Sword: The Fuujin Sword, even after it was repaired, and later on the Demon King Sword.
  • Demonic Possession: After mastering the Fujin Katana he got possessed by Fujin and become a Oni.
  • Diagonal Cut: The Iaido strike Yokoichimonji.
  • Enemy Mine: With Yaiba against Gekko and Kaguya, and that was awesome.
  • Evil Overlord: A standard one after being infected by Fuujin's evil.
  • Expy: Without the horns, he looks like Tenshinhan from Dragon Ball
  • Flaming Sword: He managed to turn his bokuto into one with his ki during the final battle.
  • Final Boss: After being trained by Yaiba's father himself.
  • Four Is Death: His Four Evil Kings (Shitenno) during the third arc. Later his Four elemental Demons.
  • Jet Pack: Has one in his Armor.
  • Laser Blade: Eventually his Devil King Sword turns into one after going all out.
  • Made of Iron: When still human he was really resilient, even after falling into a deep hole and having several balls and later iron gym tools dropped on him.
  • Tornado Move: Onimaru with his "Tornado Attack", which was powerful enough to drill his way across a generous portion of the Earth's crust and kept going for a while in outer space.
  • Villain with Good Publicity: The Japanese people aren't really worried about having a demon as leader. Ok, they attempted an Air Raid on his castle, but..
  • Villainous Valor: Even an Oni warlord, he does show traces of virtue here and ther, most notably Taking the Bullet for Yaiba himself and give him enough resolve to defeat Kaguya, as well as warning him to move out of the way before he shoots the Lightning Wind Bazooka at Gekko.
  • Worthy Opponent: Considers Yaiba this. Until the Orochi Arc, at first.

The Spiderman

voiced by: Tetsuo Sakaguchi

The third of Onimaru's Eight Great Oni, he's an anthropomorphic spider with Kansai accent who apparently came from Osaka. It serves mainly as Onimaru's righthand man and henchman, but is quite clumsy and incompetent. He briefly sides with Yaiba during the Kaguya Arc when his master is sealed in Carbonite.

Professor Kanabo

voiced by: Hisao Egawa

A Mad scientist with awful teeth and a penchant for creating really dangerous Stuff. He's hired by Onimaru and provdes him weapons and advice. He also repaired the Fujin Sword and built the Onimaru Cannon, a Flying Submarine and the Furai Bazooka.

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     Onimaru's Minions 

The Eight Great Oni (Hakki)

The first Quirky Miniboss Squad, they're all demons born from animals.

Onimaru's Four Evil Kings (Shitenno)

voiced by: Kazumi Tanaka (Chameleon Bonaparte), Tessho Genda (Dry Dry), Fumihiko Tachiki (Yakitori)

The Four Guardians of Onimaru's castle.

The Seven Revived Swordsmen

The warriors from the past summoned by Onimaru in order to kill Yaiba, they include:

Miyoshi Seikai, a monk and member of the Ten Sanada Braves. Fuuma Kotaro, shinobi and fifth head of the Fuuma Clan. Amakusa Shiro Tokisada, sorcerer and a christian Samurai. Ishikawa Goemon, rogue and former ninja. Yagyu Jubei, ronin and master swordsman. Musashibo Benkei, a Yamabushi (warrior priest/sorcerer) and Matsuo Basho, poet and former warrior.

  • Blade on a Stick: Shiro's Cross Spear.
  • The Brute: Benkei is very powerful, but far from being smart.
  • Car Fu: The battle between giant Yaiba and Goemon inside the Osaka Castle, where the latter used a whole train as a Nunchaku. There's also Kotaro's Car Fall Jutsu.
  • Carry a Big Stick: Seikai's steel staff and Benkei's Iron Bat-like Kanabo.
  • Dropped a Bridge on Him: Kotaro Fuuma's departure is quite hasty and anti-climatic, considering that he went really close to actually kill Yaiba.
  • Dub Name Change: In the Spanish dub, only Seikai Miyoshi and Jubei keeps their whole names. Kotaro, Shiro and Benkei are reduced to Only One Name and Goemon and Basho are renamed "Rocko el Barbaro (The barbarian)" and "Chi Pan".
  • Dumb Muscle: Benkei again. Let's just say he's not the brightest crayon in the box.
  • Fluffy the Terrible: Kotaro's name literally means "Little Kid". The guy himself is a giant of a man, well-muscled and dangerous.

Onimaru's Demon Gods

The last group of Onimaru's servants and probably the strongest of them all. It's composed of four demons referred to as the Kishins (Demon Gods) with elemental powers and magical swords. At first they're a bit of a Giant Space Flea From No Where

  • And I Must Scream: Dark's Dark Pyramid: Delta Zone attack can send any hit opponent into another dimension forever.
  • Awesome, but Impractical: Rain's longsword can stretch itself and pass through any substance, cutting only flesh. Seems cool? Try to use it to parry an incoming sword strike....
  • BFS: Their swords are Tachi (Longsword), and they tend to be quite long and broad
  • Blade Below the Shoulder: Unlike the other demons, Plasma has two blades on his forearms, that look like the "wings" of a Manta Ray.
  • Boss in Mook Clothing: Dark before revealing himself as The Dragon
  • Casting a Shadow: Dark has total control of the Darkness and can use it in many ways.
  • Cool Sword: Rain has the Water Demon Longsword, which manipulates water and can phase through unorganic matter to sever flesh, Burner has the fiery Fire Demon Lonsword and Dark fights with an unnamed but slick-looking falchion which can use to cast his Dark Tunnel.
  • Dangerous Forbidden Technique: Dark's Super Delta Zone is said to exhaust the 80% of his stamina and Life Force
  • Elemental Powers: Each of them, namely Water, Fire, Darkness and Light.
  • Elemental Rock–Paper–Scissors: Yaiba managed to beat Rain by using the wind to wash away all the water in the battlefield, but she just make more of it out of her sword. Also Sayaka tries this while wielding the Water Demon Longsword against Burner, but it's not enough.
    • Furthermore, Yaiba manage to escape Dark's Dark Zone by shattering it with the light of his sword. And also Plasma, whose illusions are stopped as Yaiba use the Supreme King Sword to cover the sky with dark clouds.
  • Fireballs: Burner's main tactic consist in tossing a large number of these at his target. Or a single big one.
  • Flaming Hair: Burner, of course, while Rain sports a curious case of "'Watering Hair"
  • Flaming Sword: The Fire Demon Longsword can engulf itself in flames and burn down to ashes everything it touches, even the other swords and their wielder.
  • Gravity Master: Sort of. Dark's Dark Zone attack can suck inside the shadow projected by his sword everyone standing on it.
  • Hoist by His Own Petard: Dark falls victim of his own Delta Zone and Plasma has his thunder ray sent back to him.
  • Horny Devils: Before facing Yaiba, Rain appears to him as a beautiful schoolgirl and invite him on the roof for "giving him something"...

     The Moon People 

Empress Kaguya

voiced by: Rika Fukami

https://static.tvtropes.org/pmwiki/pub/images/kaguya_yabai.jpg

The Moon Empress and evil counterpart of Ryujin. Unlike her subjects, she appears as a beautiful woman with a Playboy Bunny-like outfit and wielding a small fan. She's really powerful, and can erase mountains from existence with her Ki-blasts. Furthermore, in order to stay young and powerful she must drain the "Essence of Youth" out of young women. Her goal is to conquer Earth and rule the planet forever. It's revealed that a thousand years ago, she invaded Japan but was defeated by Ryujin and was sealed inside the body of the Dragon Maiden, and in order to return to her original form she needs the essence of Sayaka, the descendant of the Dragon Maiden. She eventually managed to absorb Sayaka's energy via a Kiss of Death and turned into her gargantuan, multiheaded true form, and after a long battle she merged with Earth bu was sealed away by Yaiba's Ultimate attack. She's awakened during the Orochi saga and is sealed in Sayaka's body, who compels her to aid Yaiba against Onimaru. She managed to stop the Leviathan's heart in order to allow Yaiba to beat Onimaru and cut his horn. After Orochi's fall, she leaves Sayaka's body, return to her spaceship and order his subject to return on the moon.

  • Alien Invasion: The Moon Empress who launches an invasion om earth using bamboo-styled spaceships.
  • Attack of the 50-Foot Whatever: Her true form is very huge.
  • Beam Spam: Can do this with her fan.
  • Big Bad: Of her own Arc.
  • Breath Weapon: True form only. And it's Wave Motion Gun sized.
  • Dark Action Girl: One of the most powerful female characters in the story.
  • Eldritch Abomination: Her true form, a Japan-sized dragon with eight heads.
  • Enemy Mine: With Yaiba in order to stop Orochi from destroying the world.
  • Energy Beings: Can assume this form. Shown properly when she leaves Sayaka's body and appears as a tall, humanoid female bunny made of light.
  • Even Evil Has Standards: She's really reluctant to allow Gekko to use the Devil King Sword.
  • Evil Overlord: Of the Well-Intentioned Extremist part, advocating Gaia's Lament.
  • Evil Wears Black: Her outfit is black (even when shaded purple).
  • Fan Disservice: Her "old" form.
  • Fusion Dance: The Gatai power, like all the Moon People
  • Genius Loci: After using said Gatai with the Planet Earth!!
  • Getting Crap Past the Radar: Aoyama basically got away with having a villainess dressed up as a freaking Playboy Bunny in a manga for young kids.
  • God Save Us from the Queen!: Though she's referred to as a princess or empress, she's still a cruel leader.
  • Grand Theft Me: She's possessing a Ryujin's Priestess body.
  • Heel–Face Turn: Courtesy of Sayaka. Kaguya reappears during the penultimate arc, where she fuses with Sayaka and reluctantly agrees to help Yaiba defeat Onimaru and the Yamata no Orochi. After Onimaru and the dragon are defeated, Kaguya and her people return to the Moon, hoping to restore it back into a beautiful planet.
  • High Class Gloves: Her royal outfit includes long gloves.
  • Hoist by His Own Petard: In the past, taking the body of Ryuujin's Priestess allowed Ryuujin to seal her powers into a weak human body by severing her ears.
  • Ki Attacks: Several of them.
  • Kiss of Death: Her kiss can drain away Youth from a woman. Thankfully after she's defeated the essence returns to the women.
  • Life Drinker: She maintains her youth and power by draining the Life Force of other women.
  • Made of Iron: Even in her weakened form she survived a barrage of Fire Balls, Razor Wind and a Whole Frickin' Tornado!!!
  • Mars Needs Women: Moon Needs Women. She has her minions capture women to drain then of their essence in order to stay young and powerful.
  • Ms. Fanservice: Despite being a villain, her outfit and buxom chest certainly fits this. Even the manga had fun with this in some of the Side-Story Bonus Art.
  • Moon Rabbit: She's the Empress of a race of bunny people living on the moon.
  • Noblewoman's Laugh: She does this several times, usually when mocking someone.
  • Oh, Crap!: Reacts with sheer terror when Yaiba uses all the power of Ryuujin against Earth itself, which results in her taking the bullet and going into a sealed coma to save the planet from certain destruction.
  • One-Winged Angel: When her powers are partially unleashed she briefly conjures demonic hydra-like heads from her neck and limbs, later on she takes back her original, monstrous form. Subverted in the end of the Orochi Arc, where, despite being free, she decides to assume her human form because "she never like that form anyway".
  • Pimped-Out Cape: Her royal outfit includes a fur-trimmed cape.
  • Playboy Bunny: She wears one that is fit for royalty. The ears however actually serves to hide her real bunny ears stumps.
  • Prehensile Hair: Can use them as a trump card
  • Pretty in Mink: Her outfit is trimmed with white fur.
  • Purple Is the New Black: In the anime, and some art, her black outfit and hair are shaded purple.
  • Slasher Smile: A permanent, toothy one in her true form.
  • Shoulders of Doom: Her outfit includes properly villainous shoulder guards.
  • Sexy Backless Outfit: The leotard of her outfit is this, although with the cape, it's not immediately visible.
  • Sexy Silhouette: She's as a naked silhouette behind the curtains in her bed, stretching as she's waking up from her long sumbler.
  • Sleeps in the Nude: She says sleep is another way to preserve her youth and beauty and she is shown to do so in the nude. She's even introduced in this fashion. A Modesty Bedsheet or Sexy Silhouette are used to preserve her modesty.
  • Taking the Bullet: How she's actually defeated after she merges with Earth.
  • Villainous Breakdown: Snaps during the final confrontation as she starts growing older and older while the heroes are busy saving Sayaka.
  • Villainous Valor: While she is cruel and cold towards mankind and most of her subjects, she deeply loves the Earth, and makes sure Tsukikage gets the best healing they can muster after he took a fireball for her.
  • Weaksauce Weakness: She must feed every 24 hours, or she'll die. This weakness is gone once she returns to her true form.
  • You Have Failed Me: She obliterated Mangetsu for failing her.

Tsukikage

voiced by: Daiki Nakamura

https://static.tvtropes.org/pmwiki/pub/images/snapshot_11_3.png

The greatest Moon General, and Kaguya's right-hand man. Is a cold and extremely competent Moon Rabbit and really loyal to her mistress. Apparently, he's Gekko's elder brother, or at least Best Friend.

  • Badass in a Nice Suit: The strongest and most competent Moon General, as well as one with a sharp dress.
  • Battle Butler: To Kaguya herself. He functions as both her personal assistant as well as The Dragon.
  • The Comically Serious: His serious demeanor is put into contrast with the rest of the Moon Rabbit shenanigans.
  • The Dragon: Kaguya's most loyal supporter, and the strongest before Gekkou comes to town.

Mangetsu

voiced by: Toshihiko Nakajima

A Large Moon Rabbit who concots a plan to kill Yaiba, which include surrounding Tokyo with gigantic walls and flood the whole city until he shows up. After a quick battle with the Kid Samurai he uses the power of Gatai first on a Lobster, and later (in order to avoid Yaiba's fireblasts, with a propane Tank. Eventually he's outsmarted by our hero, tossed in space and "Fired" back to the moon. He asks Kaguya a second chance, but she simply destroys him.

  • Breath Weapon: In his "Tank" form he can spit fire.
  • The Brute: A straightforward and ambitious prick with no finesse in combat.
  • Fat Bastard: A portly bunny whose plan for challenging Ryuujin involves flooding an entire city. He becomes even bigger after merging with a gas canister in order to stop Yaiba from using the Fire Orb's powers.
  • Fusion Dance: He's the first Moon Person to show this skill to Yaiba
  • Giant Enemy Crab: Or rather a Giant Enemy Lobster, and man, it was really powerful.

Mikazuki

voiced by: Nobuhiko Kazama

One of the Moon Generals, is a thin, weird looking rabbit who serves in Kaguya Army. When Yaiba attacks Kaguya spaceship in order to save the imprisoned girls, he, Tsukikage and Shingetsu attack Yaiba. He uses Gatai on a Shark to fight him underwater, but has his ears cut off and he's blocked in shark form.

  • Good Scars, Evil Scars: Has a crescent-shaped scar on his forehead, which fits his name. (Mikazuki means crescent moon)
  • Threatening Shark: He merges with one to fight Yaiba, though he mostly rams him with his muzzle.

Shingetsu

voiced by: Tomohisa Asou

Another of the Moon Generals, and pal of Mikazuki. He's an Elder Moon Rabbit with a long beard who fights alongside Mikazuki and Tsukikage to stop Yaiba. He "merge" with a squid, but suffers the same fate of Mikazuki.

Hangestu

voiced by: Ginzo Mastuo

A really short and plump Moon Rabbit, he's Kaguya's Advisor. After Yaiba's raid Kaguya's Spaceship, Jubei is left behind, and Mangetsu uses his powers to Merge with Jubei and take over his body. Later he go back to Mine house, kidnap Sayaka and attempt to kill Yaiba but is discovered. Eventually Musashi manage to make him drunk and awake his Wolfman side, who chase away the Rabbit who gets captured. When Gekko storms Mine house later, he kills him by shooting him point blank with his Bazooka.

Gekko

voiced by: Kazuki Yao

https://static.tvtropes.org/pmwiki/pub/images/Gekko_5105.jpg

The only Black Moon Rabbit, Gekko is an insanly powerful warrior who was imprisoned for trying to overtake the Moon. Kaguya free him in order to have him fight Yaiba and kidnap Sayaka. After his first failure, he decides to violate the cell "666" and take the Devil King Sword, which uses to utterly best Yaiba. Eventually, the combined forces of Yaiba and Onimaru manage to defeat Gekko's Sword. After the Orochi Arc he appears along with Tsukikage and the other Moon People when Kaguya "de-merge" herself and return to her "human" form.

  • Accidental Pervert: At first Yaiba thinks he wants to kidnap Sayaka to make out with her.
  • BFS: The Devil King Sword is quite large compared to him
  • Blob Monster: He carries around some strange space monster called Mochi-Ron, who uses to block enemies.
  • Carry a Big Stick: His Moon club. More of a Bazooka than a bludgeon.
  • Dangerous Forbidden Technique: The Devil King Sword's Fullmoon Blast can easly turn Earth into a dead wasteland, just like the Moon
  • Co-Dragons: With Tsukikage to Kaguya.
  • Evil Weapon: The Devil King Sword (Maoken).
  • Eye Scream: In the past, Ryujin took away his eye with a sword strike. It grows back when he seize the Maoken.
  • Freudian Excuse: In the Anime is revealed that Gekko was mistreated and bullied as a child because of his black fur, and only Tsukikage was close to him.
  • Killer Rabbit: More like Omnicidal Maniac Rabbit, but it fits.
  • Knight of Cerebus: The first person to actually curb-stomp Yaiba, even with the Ryujin Sword.
  • Pet the Dog: He's nice to Tsukikage and often calls him "Aniki" (Big Bro).
  • Red Oni, Blue Oni: Red to Tsukikage. Wheter they're actual brothers or not isn't actually known.

     The Pyramid Guardians 

The Third-Class Soldiers

These are the lesser minions from the Underworld Kingdom who defend the Pyramid. Despite being the lowest class soldiers, they're still really resilient and more than a match for the young samurai. They include the Rock Soldier, the Sugi (A Japanese conifer tree) Pollen Soldier and the Snowman Soldier

The Second-Class Soldiers

The Elite Mooks compared to their lower class collegues. They're the Ant Soldier, Budou the Grapefruit Soldier and the Mushroom Soldier.

  • Calling Your Attacks: Budou,'s Muscat Kick and Kyohou Blast attacks, which both features Punny Name
  • Dual Wielding: The Mushroom Soldier uses his scimitar and Yaiba's Raijin Sword to fight him.
  • Face–Heel Turn: Happens to those who eat the mushrooms in the Mushroom Soldier's Room. It can be reveserd.
  • Hoist by His Own Petard: The Grapefruit Soldier falls off the Pyramid when Yaiba hit his arm, making him fire his Kyohou Blast right next to him.
  • Ignored Enemy: The poor little Ant Soldier gets this treatment
  • Informed Ability: The Ant Soldier is said to have the hardest and strongest body, and able to pick up items several times his size. He's actually Ant-Sized too, and so said giant boulder is revealed to be a normal sized stone.
  • Ki Attacks: Budou can shoot purple "grapefruit-like" Ki Blasts
  • Mega Manning: Sort of: Mushroom Soldier can pick up and use the Raijin Sword because his masters built him with this ability. Considering that one of his makers may be Onimaru, who possessed the Fujin Sword, another demon katana, it's quite Fridge Brilliance.
  • Sinister Scimitar: The Mushroom Soldier.
  • Super Strength: The Ant Soldier.
  • Turns Red: Budou improves his speed by removing his claws and the "Grapes" around his neck, leaving only his head.
  • Wolverine Claws: Budou's Weapon of Choice

The First Class Soldiers

These are the top fighters of the Pyramid, and really powerful. They all look like twins girls, and each of them is specialized into a particular branch of fighting.They are Ruby, the Stong Soldier, Sapphire the Skilled Soldier, Diamond the Genius Soldier and Emerald the Barrier Soldier. They can also merge together to form Jewel, the Perfect Soldier.

  • Jerkass: They're really nasty to Yaiba.
  • Mega Manning: Sapphire, the Skilled Soldier, can copy any technique used against her after mere seconds.
  • Super Strength: Ruby, the Strong Soldier, who can bend the Raijin Katana with a finger.

    The Denizens of Underworld 

Boss

The Mysterious leader of the Underworld Kingdom, he's always seen sit on his throne behind a waterfall, and he's the one behind the Pyramid and hold a huge grudge against humanity, accusing them of spoiling the Earth with wars and pollution. We find out that he was misguided by Onimaru and has one of his super Warriors turned against him and his kingdom, but is saved by Yaiba. He appears later to help Yaiba and Sayaka against the Yamata no Orochi. He also looks like Kami.

  • Informed Ability: When he finally appears before our heroes, he stated that noone of Yaiba's group (minus Yaiba) could even hope to hurt him. Yet, in the Orochi Arc he's stopped by a Kaguya-Possessed Sayaka with ease.
  • Kill Them All: After Yaiba destroys Tokyo's Pyramid he reacts by sending tons of laser-shooting black pyramids all over the world.

Gold&Silver

The Super Warriors of the Uderworld Kingdom, they're two black giants with a single eye each. They're really powerful and strong, but not very smarts. eventually Onimaru reveal himself, and use the powers of the Devil King Sword to turn Gold into a Oni, and orders him to destroy the whole underground realm, but Yaiba kills him in time with the Supreme King Sword and full power.

  • Attention Deficit... Ooh, Shiny!: When Gold is about to finish Yaiba, the cheering Underworld people attract his attention, and he unleash several deadly attacks on them.
  • Breath Weapon: As Oni, Gold can shoot a devastating laser out of his maw.
  • BFS: Gold's Sword is really large.
  • Enemy Civil War: Yaiba manage to cause a quarrel between the two titans. This lead to Silver's death at the hands of Gold.
  • Epic Flail: Silver, who stores it in his stomach
  • Eye Beams: Silver can shoot a shocking laser while Gold creates some weird rings that paralyse the victim
  • Eye Scream: Silver, and twice.
  • Flaming Sword: Gold can heat up his saber.
  • Go for the Eye: Yaiba's strategy against Silver.
  • Hoist by His Own Petard:
    • Silver follows Yaiba inside a small pool of water and gets electrocuted by his own beam.
    • Later Yaiba uses Gold's outstretched arm and his strenght to propel himself fast enlugh to pierce him
  • Lightning Bruiser: Despite their size, they're really fast.

     The Oda Nobunaga Tournament Participants 

Unnamed Samurai

The first fighter met by Yaiba, is a stern looking samurai who uses a peculiar sword style involving water. Despite having no name, he serves to prove how hard this tournament will be.

Frederick Luther III

A European Knight, and Yaiba's second opponent. Despite his noble and proud appearence, he's a slimy, dirty cheater who's not above using vile tricks to win the Tournament and 10% of the final prize which amounts to 100000 millions Yen.

Gozuma

A mighty warrior whose body was powered up thanks to "microunits" which turns him in a restless, powerful fighter who feels no pain and can increase his speed and strenght as he fights. He's the champion of the Platina leader Gakuso Shirogane and fights Yaiba in an elettrified ring.

  • Artificial Human: Partially averted, he's fully human with "microunits" planted in his muscles.
  • BFS: His weapon of choice is a very large scimitar.
  • Calling Your Attacks: "NIAGARA CRUSHER!!"
  • Hoist by His Own Petard: Gakuso orders him to absorb more and more energy from the elettrified barrier, causing him to overload and frying all his microunits.
  • Lightning Bruiser: And he can become even faster as he fights.
  • Noble Demon: Despite his appearance, he's quite noble and even wait for his opponent to stand back on his feet before launching the last blow and give him back his sword.
  • Shock and Awe: Can feed on electricity in order to increase his speed and strength.
  • Shout-Out: He looks a lot like Terminator.
  • Sinister Scimitar: Wields a dadao as his weapon of choice.

Hattori Hanzo

One of the participants is a ninja. He makes a couple of cameos and is one of the strongest partecipants. Apparently he gets defeated by Onimaru.

  • Double Weapon: He's seen wielding a sort of double dagger-like weapon.
  • Expy: He looks like his counterpart in Samurai Shodown.
  • Fanservice: Not the sexual one, but considering that so many other "famous warriors" have appeared, his cameo can count as this for the nippophilies.

Soshi Okita

Sixth descendant of the legendary Shinsengumi ''Kensei'', he's a young and powerful swordsmaster. Extremely good naturated and kind, is also a fearsome opponent with an amazing skill. Wields the famed Kikuichimonji katana.

  • Cool Sword: His precious katana, which covers:
    • Ancestral Weapon: The sword of his famous ancestor and still and Absurdly Sharp Blade
    • BFS: It looks quite big compared to him.
    • Named Weapons: Kiku Ichimonji (菊一文字) alias: Chrysanthemum Crest.
    • Sword Beam: His ultimate attack allows him to send a wave of bright energy from the ground as a sort of counter attack.
  • Counter Attack: Apparently he's just parrying blows with the hilt of his sword. In reality, he's parrying and hitting back with such a speed that Musashi can tell it only from Yaiba's wounds.
  • Curb-Stomp Battle: An interesting variation: physically, he totally owned Yaiba, but Yaiba's tenacity totally caught him by surprise and pushed him to withdraw.
  • I Just Want to Be Normal: For this reason he lacks a strong spirit like Yaiba.
  • I Let You Win: After noticing that Yaiba's assaults grow stronger and stronger as he gets up and surprised by the Toujin technique, he decide to quit. Also done in order to avoid to kill Yaiba of course.
  • Kid Samurai: He's slightly older than Yaiba himself.
  • Master Swordsman: One of the greatest ever shown.
  • Nice Guy: Also one of the nicest guys in the whole manga.
  • Oh, Crap!: Despite his superior skills, he's often surprised and caught off-guard, expecially when Yaiba manages to unclock the Tojin (Battle Blades) attack on him.
  • Reverse Grip: The stance for his strongest attack, followed by a full circle movement and a bit of Sword Drag.

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Kenjuro Kurogane

voiced by: Bin Shimada

Yaiba's father and master, is a happy-go-lucky, lazy man who wanders around the world, but is well known for his skill with the sword. He rarely appears, and he's often shown to be drunk. In the last Arc, is revealed in the beginnging that he might be an impostor who killed Yaiba's true father and kidnapped him. Yaiba will eventually meet him at the Oda Nobunaga Tournament. He actually Is his true father, (his mother lied to Moroha out of despair) who abandoned his wife in order to become a master samurai. In order to test Yaiba's skills, he trains Onimaru untill the latter become as strong as himself and let him fight with Yaiba. He eventually makes peace with Yaiba's mother.

  • Demoted to Extra: In the anime, which not only ends earlier, but also shows him only in the very first episode.
  • Friend to All Living Things: He's quite a touch with wild animals. As he explain to Onimaru, it's because his spirit his in perfect balance.
  • Let's You and Him Fight: He teaches Onimaru everything he knows, so that Yaiba will face someone exactly as powerful as him.
  • Master Swordsman: Pratically the strongest swordsman in the series if Onimaru's performance is a hint.
  • Noodle Incident: Apparently, he once stole Musashi's sword Kotetsu.
  • Old Master: Not really old, but still he taught Yaiba many useful techniques.
  • Parental Abandonment: Well, he raised Yaiba in the Jungle, but after that he basically vanishes
  • The Rival: To Raizo Mine.
  • The Unfought: In 24 volumes he never, ever drew his sword against an opponent.

Raizo Mine

voiced by: Tessho Genda

Sayaka's father, and an espert Kendoka. He's an old rival of Kenjuro.

Sayaka's Grandmother

voiced by: Reiko Suzuki

Sayaka's Grandmother, she's an old, small kendoka, and really skilled.

  • Broken Pedestal: She was shocked to find out that her Idol Musashi is a withered, tiny old man.
  • Lightning Bruiser: She's really fast despite her age
  • Mama Bear: Almost took on Onimaru when he threatened Sayaka to know Yaiba's whereabouts

Kerokichi

voiced by: Kappei Yamaguchi

A small nerdy kappa who inhabits the Darkness Orb. After witnessing Yaiba's strong will, he manage to leave the orb as well, but gets captured by Onimaru. He's later freed by Yaiba.

  • Big Damn Heroes: Sort of: he pops out the Orb just in time to prevent Yaiba's fall into the Darkness.
  • Butt-Monkey: Heck, when even the Spiderman can beat the crap out of you...
  • * Kappa

Kerosuke

voiced by: Shigezo Sasaoka

A giant Kappa that guards the only exit from the Darkness Orb. Yaiba manages to beat him with his new Kazaguruma attack, that break his head-shell.

  • Kappa: A serious case of Our Kappas Are Different!

Ryujin

voiced by: Kouji Ishii

The Mighty Dragon God, he appears as an old samurai wielding a katana. His duty is to protect the Earth from Kaguya and other evil threats. After surviving his tasks, Yaiba is allowed to take his power, the Ryujin Orb. Is also revealed that a thousand years earlier he defeated Kaguya and Gekko. After Kaguya's second defeat, he goes away with the Orb. He reappears during the Orochi Arc to stop Onimaru, and in order to protect Yaiba he's hit by Dark's Delta Zone, and he manage to drag the Darkness Demon with him as he's sent to another dimension.

Nadeshiko Yamato

A beautiful lady-warrior who appeared in a really short filler story. She wants to marry Yaiba and she's ready to fight for Mine's Dojo. It's revealed that it was a huge misunderstanding...

  • Accidental Marriage: When she was younger, Yaiba saved her from a leopard and she fell in love with him and asked if she could "Cook for Him". Yaiba accepted. (Granted, he thought she was a chef).
  • Blade on a Stick: She uses the "Shinai" version of a naginata. That means, a naginata with a bamboo curved blade.
  • Designated Girl Fight: With Sayaka, but only because she had already beat the crap out of Kojiro and Musashi. No, no Fanservice for you.
  • Heroic BSoD: She took a huge shock when Yaiba instantly recognized her as "The Girl who likes cooking!". Poor lad.

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