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[[quoteright:256:http://static.tvtropes.org/pmwiki/pub/images/sdk110.png]]
[[caption-width-right:256:That's just the ''[[LoadsAndLoadsOfCharacters main cast]]''.]]

''Samurai Deeper Kyo'' is a thirty-eight volume manga by Akimine Kamijyo about the exploits of Shiina Yuya, a sixteen year old [[BountyHunter bounty hunter]] seeking revenge for her older brother's death, who meets [[CrouchingMoronHiddenBadass Mibu Kyoshiro]], a medicine peddler, and [[JerkWithAHeartOfGold Demon Eyes Kyo]], who is trapped in Kyoshiro's body.

And then it gets complicated.

Cue an AnachronismStew, LoadsAndLoadsOfCharacters, loads and loads of CharacterDevelopment, lots of {{Badass}}ery, several {{Quirky Miniboss Squad}}s, several {{BFS}}es, and what is probably the biggest BodyguardCrush in history.

The manga ran from October 15th, 1999 until May 20th, 2006. The English translation of the final volume was released in 2010.

Kyo and friends appear in the MassiveMultiplayerCrossover game, ''VideoGame/SundayVSMagazineShuuketsuChoujouDaikessen''.

----
!!Tropes:

* AbusiveParents: Shinrei and Hotaru's father. He actually ''[[OffingTheOffspring sent assassins]]'' after Hotaru, his illegitimate son. He also had Hotaru's mother killed and framed her death as suicide. For the most part, he just had ridiculously high expectations of Shinrei, but he also was seen hitting a very young Shinrei hard enough to knock him over for [[DisproportionateRetribution saying that the "Demon Child" had saved his life and was not evil]].
* AllYourPowersCombined: The Former Crimson King
* AnAesop: Played poker-face straight countless times.
* AnachronismStew: Shameless and blatant.
* AncientConspiracy: The Mibu Clan has been shaping the history of Japan from behind the scenes for as long as the country has existed.
* AndThatsTerrible: Kyo kills people for fun. Because he is the hero, every one of the villains in the series has to be called "You MONSTER!" at some point, just so we remember which of them is [[BlackAndGrayMorality less bad]].
* AnimalEyeSpy: Lord Fubuki and his cat.
* AntiHero: If Kyo - a person who got his nickname for perpetrating mass-murder on a ridiculous scale - doesn't count, then there is no such thing.
* ArtEvolution: Both character designs and scenery become more refined and unique as the story progresses, especially once the protagonists arrive in Mibu territory and we get to see their elaborate city and structures.
* ArtificialHumans: [[spoiler: The ''entire'' current Mibu clan in the manga, who are revealed to actually be the descendants of Battle Dolls created by the True Mibu. Except Kyo, the last of The True Mibu. Flipped in the anime, where only Kyo is a construct.]]
* AwLookTheyReallyDoLoveEachOther: Kyo and Yuya in the last couple of chapters and the epilogue (there are moments earlier, but they're few and far between). Perhaps most evident after her CooldownHug breaks him out of his supposedly-irreversible "[[SuperpoweredEvilSide Demon God]]" state.
* AxCrazy: Ninety percent of the developed cast is this, including and perhaps ''especially'' the title character.
* BackToBackBadasses:
** The Shiseiten's special attack.
** Hotaru and Shinrei also do one of these, and it's awesome.
** Hishigi and Fubuki pull off another one while they are fighting Kyo.
* {{Backstory}}: If a character has a name and anything resembling development, expect them to get a backstory.
* {{Badass}}: A massive majority of the cast fills this trope, though Kyo, Kyoshiro, the Shiseiten, The Former Crimson King, Hishigi and Shinrei are candidates for the top spot.
* BadassGay: Hishigi, [[AmbiguouslyGay probably]]. His relationship with Fubuki [[BodyguardCrush does not seem]] [[HoYay remotely platonic]], and he has some [[FoeYay suggestive dialogue with Kyo]] as well.
* BadassNormal: Yukimura and the Ten, minus Sasuke. Bontenmaru fills this role in the Shiseiten.
* {{BFS}}: Kyo's Tenro
** Sasuke starts out with a Tenro copy, despite being twelve years old and an appropriate height for his age.
** Shihoudou's Kusanagi-no-Tsurugi is also really damn big.
** Hishigi's Hakuya is ''massive'', and he wields it [[OneHandedZweihander one-handed]].
* BigDamnHeroes: Kyo on a regular basis, usually after [[TookALevelInBadass taking a new level in badass]]. A few other characters get moments like this too.
* {{Bishonen}}: Including but [[CastFullOfPrettyBoys not limited to]] Hotaru, Shinrei, Akira, and Hishigi (really more of a Biseinen, the fanbook suggests he's intended to look 30ish). Yukimura fits the {{Bishonen}} aesthetic, but [[OlderThanTheyLook he's 37]], so technically would be a Biseinen as well.
* BlackAndGrayMorality[=/=]GrayAndGreyMorality: Some of the villains are absolutely 100% evil, no two ways about it. But others have reasons for what they do and sometimes even seem more sympathetic than our AxCrazy BloodKnight [[AntiHero protagonist]].
* BladeRun: Sasuke has one of these early on.
* BloodFromTheMouth: Happens a lot. It's occasionally justified when a character is outright stated to have lung damage/internal bleeding, or a cut ''in'' the mouth in less deadly situations. It also comes with the IncurableCoughOfDeath for any Mibu with the Death Disease.
* BloodKnight: It would be easier to name the characters who ''aren't''.
* BodyDouble: Kosuke for Yukimura.
* BodyguardCrush: Go ahead, try to name a single time when Kyo's UnstoppableRage is triggered by something other than Yuya being directly threatened.
** In the anime, it's strongly implied Saizō has a crush on Yukimura. It's not helped by Yukimura teasing him ("What are you, my wife?" followed by "If it pleases you, my lord". Then there's Saizō blushing and his comment when Yukimura disguises himself as a woman. The kimono "really suits you" indeed.)
** While not exactly a bodyguard, Hishigi seems to have one on Fubuki. He throws himself in front of Kyo's most powerful attacks for him, and his only motivation is Fubuki's survival.
* BookEnds:
** The story begins four years after Kyo's "death" at Sekigahara. Yuya is seen reading his wanted poster, and he returns in the body of Mibu Kyoshiro at the end of the first chapter.
** The story ends three years after [[spoiler:Kyo's disappearance/possible death with the fall of the Crimson Tower]]. Yuya is seen reading his wanted poster, [[spoiler:and he returns in his own body at the end of the final chapter]].
* BountyHunter: Yuya is the most prominent, but we see a few others.
* BrotherSisterIncest: Anime only, betweeen Nobunaga Oda and Shatora.
* BunnyEarsLawyer: Julian and Shihoudou are both extremely competent and extremely weird. Kyo warns Sasuke of the latter's {{Badass}}itude when Sasuke gets cocky, and admits even ''he'' can't handle her in a fight. There are times when they cross the line into CrazyAwesome territory.
* ChekhovsGun: [[spoiler:Toward the end of the manga, Yukimura uses the kodachi that Muramasa gave Yuya to defeat Chinmei. [[ChekhovsBoomerang Even later]], the same kodachi is altered by Julian to become the fourth "key" needed to open the door hiding the Mibu's greatest secret]].
* ChekhovMIA: We are told that Mibu Kyoichiro (the first of the Crimson Cross Knights) went missing and is probably dead. [[spoiler:He's the Former Crimson King]].
* CherryBlossoms: All over the place, symbolic and otherwise.
* TheChick: Yuya
* ChildrenAreInnocent: Subverted by so many characters that it's far more remarkable when we ''do'' see an innocent child. Flashbacks of Yuya, Tokito, and Shinrei are about the only moments that play it straight. Specific examples of subversion below:
** Akira is cheerfully slaughtering away on the battlefield by the time he's ten, and was a jaded street kid before Kyo found him.
** The Mibu have no problem with using child soldiers.
** As if it needs to be said, Kyo himself. He killed Nobunaga when he was six. ''Six''.
* CleanCut: Almost all of the characters are capable of this.
* {{Cloudcuckoolander}}: Hotaru. It may just be ObfuscatingStupidity, as he proves many times that he's smarter than he seems.
* CombatCommentator: Akira and Bon serve as this at turns for Yuya. Averted in the Akira-Tokito fight, as Yuya isn't around for that one.
* ConservationOfNinjitsu: Both played straight and inverted
* CooldownHug: Played straight during Kyo's SuperPowerMeltdown: Yuya runs through the mess he's making to bring him back.
* CrouchingMoronHiddenBadass: Kyoshiro's badass side is ''very'' thoroughly hidden for a long time. The Former Crimson King is more overt about it all being just ObfuscatingStupidity.
* CuteBruiser: Antera
* DefeatMeansFriendship: A significant number of enemies who aren't dead at the end of a fight become allies.
* DepravedHomosexual:
-->'''Bikara''': Getting distracted by a woman while a beautiful man like me is standing in front of your eyes.
--> and
-->'''Bikara''': The suffering face of a good-looking man is dreamy.
* DespairEventHorizon:
** In a flashback, we learn that Hishigi hit it hard after implanting the Devil Eyes, telling Fubuki that he wished that someone would just kill him already and calling his friend cruel for refusing to do so.
** Subverted by Tokito, who ''acts'' as though hitting this after losing to Akira, but gets over it after losing a hand of MiseryPoker and gaining some perspective.
* DeusExMachina: [[spoiler:At the end of Kyo's battle with the Sendai Aka no Ou, the Crimson Tower is falling to pieces around them and Kyo is horrifically wounded to the point where he cannot even stand. Three years later, we find out that the ''Original'' Crimson King (AKA the spirit of Tenro and Kyo's ancestor) teleported Kyo out before he hit the ground]].
* DiagonalCut: Taken to its logical extreme, thanks to the RuleOfCool.
* DistantFinale: The last chapter is set three years after the one before it.
* {{Dojikko}}: Sakuya
* DoppelgangerAttack: Benitora, in a rare Non-{{Ninja}} example
* DramaticWind: Very common when a fight gets intense. Sometimes caused by a characters aura or power, sometimes just for effect.
* DrivenToSuicide: Hishigi is ''very'' close before Fubuki tells him that [[HoYay he isn't allowed to die until Fubuki says he can]].
* DualWielding: Akira and Tokito.
* DysfunctionJunction: Most of the characters have some kind of emotional/mental damage. Just about every character that gets any level of development has Woobie elements, mostly of the {{Jerkass}} variety.
* ElementalPowers: Several characters use powers that fall into the various elements.
** MakingASplash: Shinrei and Fubuki.
** DishingOutDirt: Chinmei combines this with GravityMaster.
** PlayingWithFire: Hotaru and Yuan.
** RazorWind: Kyo's own Mumyo Jinpu Ryuu style is centered in this concept.
** LightEmUp: Hishigi can create [[SwordBeam blades of light]] with his {{BFS}}, Hakuya. Anthony's Koryuuha technique ''looks'' like streams of light, but is implied to be simply too fast for Hotaru and Shinrei to see before they awaken their subconscious powers (he never uses it afterward, so it's not entirely clear).
** AnIcePerson: Akira.
** ShockAndAwe: Sasuke.
** The theme of the Goyosei is that they embody the five Chinese elements: Shinrei is water, Keikoku (Hotaru) is fire, Chinmei is earth, Saishi is wood, and Taihaku is gold/metal. Taihaku is the only one who does not have powers related to his element.
** Shindara is shown to be capable of using several elements, but at a [[MasterOfNone lower power output than specialists]].
* ElementalRockPaperScissors: Averted; It's demonstrated over the course of the series that the superiority depends on the wielder, rather than the element they are using. [[PlayingWithFire Hotaru]] initially overpowers [[MakingASplash Shinrei]] despite severe injuries from fighting Kyo, but only because he's using his Hono Chikewai, which gives him a huge boost of power but causes damage over time. Shinrei ultimately comes out on top because Hotaru's boost wears off. And later, ''both'' of them get mercilessly [[CurbStompBattle curbstomped]] by [[MakingASplash Fubuki, a true master of water]].
* EmpathicWeapon: The Muramasa demon blades. It's implied that other weapons can "speak" with their wielders as well, but not demonstrated.
* EnfanteTerrible: Tokito starts off as one of these. Subverted in that he's at least a few decades older than he looks, but presents as a child (14 according to the fanbook) because his adult body looks more like Muramasa. [[spoiler:When she was ''actually'' a child, she was perfectly nice]].
** Kyo was one, too.
* EyepatchOfPower: Hishigi has something of an "entire left side of his body" patch of power. There's also Akari's glove, which covers the Devil Eye on her hand.
* FakeMemories: [[spoiler:Tokito's memories of her real parents (Fubuki and Hitoki) were suppressed and replaced by the idea of Muramasa as her father and a mother who left her. When the real memories try to surface, she suffers from headaches and disorientation]].
* FanDisservice: Hishigi is quite attractive, but the one time he takes off his shirt, it's this because he's [[EyesDoNotBelongThere covered in Devil Eyes]].
* FightingFromTheInside: Kyo and Kyoshiro go through this back and forth a few times.
* FiveBadBand: The current Taishiro along with the king
** BigBad: The Former Crimson King
** TheDragon: Fubuki. His water attacks even [[InstantAwesomeJustAddDragons look like dragons]]!
** TheEvilGenius: Hishigi, complete with [[MadScientist creepy genetic experiments]].
** TheBrute: Yuan's initial presentation, as the Elder who relies most heavily on pure force and fights hand-to-hand. He subverts it eventually.
** TheDarkChick: Tokito is the young, immature loose-cannon type. [[spoiler:It fits even better once we find out she's actually a girl.]]
* TheFogOfAges: Chinmei is implied to be at least a couple thousand years old, and can't remember for sure if any of the people he used to love even existed. By the time he shows up in the plot, killing is the only way he can feel ''anything''.
* TheFourGods: Kyo's sword techniques.
* FourIsDeath:
** The Shiseiten are frequently described as being gods of death.
** Most of the Taishiro are even more lethal.
** Muramasa forged four "demonblades" (Tenro, Shibien, Hokurakushimon, and Hokuto Shichisei), incredibly powerful weapons that can be just as dangerous to the wielder as the enemy if not used correctly.
** There are four Crimson Cross Knights, and every one of them except for [[PosthumousCharacter Kyosaburo]] is shown being incredibly deadly. And Kyosaburo developed the Mumyo Jinpu Ryu, so it can be assumed that he was extremely powerful as well.
** Nobunaga's fourth death is the one that puts him down for the remainder of the manga, though who knows if it's permanent.
* GentleGiant: Bontenmaru. Sure, he has the whole "god of war" thing going on, complete with a berserker mode and everything, but he has a soft spot--not like that--for little girls, even ones that punch holes in him and torture him; and Akari reveals that he [[AnachronismStew likes shoujo manga]]. As for Bontenmaru's reason for taking over the entirety of Japan? He wants to take it over so people can live their lives in peace.
* AGodAmI: The vast majority of the Mibu think like this. And in truth, no one really disputes them on that.
* GoodScarsEvilScars: Subverted with Yuya, who has a hideous scar on her stomach.
** It gets de-hideoused later on.
** Played straight with Hishigi, who is covered in rather disgusting scars after the Devil Eyes that were keeping him alive die.
** Also played straight with Akira, who is COVERED in scars, but they are not obvious seeing as they are usually covered by clothes (most of them are on his back).
* GondorCallsForAid: At the end of the manga, when Yukimura rallies the forces of Tokugawa, Sanada, and Date to contain the Crimson King's blood soldiers.
* GracefulLoser: Most opponents who survive fulfill this trope, as well as some who don't. The SoreLoser is just as common, though.
* GunsAreWorthless: Yuya
** The manga [[LampshadeHanging lampshades]] this by having Akari take Yuya's gun and attempt to shoot Santera with it. Santera stops the bullets, and Akari throws the gun away.
* HeroicSecondWind: Every fight in the series goes this way. Every. Single. One.
* HeWhoMustNotBeSeen: [[TheFaceless Sakuya]] spends 32 volumes hidden behind her bangs, and the manga-ka is fond of "lighting" characters whose faces we aren't to see yet from the back, or putting them in elaborate, face-covering costumes
* HighPressureBlood: Extremely common.
* HighSchoolAU: The author wrote one as an extra in the fanbook, and liked it so much that she wrote two "Samurai High School" drama [=CDs=].
** And they're absolutely rampant in the fandom, though it's arguably justified, because SDK has one hell of a UniversalAdaptorCast.
* HistoricalHeroUpgrade[=/=]HistoricalVillainUpgrade: There are historically relevant names all over the place, on both sides of the various conflicts.
* HomageShot: The manga opens with a lay-out and narration content ridiculously reminiscent of the first page of ''Manga/RurouniKenshin'', which was still running at the time. The series probably originated as an attempt to cash in on [[FanNickname Ruro Ken's]] popularity as historical drama with legendary swordsman incognito, but found its own very weird voice pretty quickly.
** More precisely: SDK's first page runs, page-width panels going down:
---> ''[First panel: bloody battle scene; whole page has artful blood drips all over it]'' "During the end of the warring states period... In a time of chaos, a war began to try to divide the country. This fight would later be known as the Battle of Sekigahara. Like thunder the war spread. Under this sound and bloody rain, many were killed."
---> ''[Second panel: 'shadowboxing' image of dramatic duel]'' "These warriors, without taking care for the issues of the battle, had found the meaning of their lives in sword-handling... They lived only to improve their skill... And died..."
---> ''[Empty white bridge space extending across page]'' "Among the men who disappeared at this historical time..."
---> ''[Third/final panel: bottom of page occupied by close up of Scary Eyes (RedEyesTakeWarning in this case, but the manga's in black and white, so you can't tell)]'' "There was one who was called 'the unbeatable'..."
---> ''[Two-page title spread, then complete tone-shift and Kyoshiro as TheDitz reading off a wanted poster, finishing the sentence]'' "The legendary wanted man, Demon Eyes Kyo."
** Meanwhile, Ruro Ken starts with, also page-width panels:
---> ''[First panel: blood spatter flying]'' "One hundred and forty years ago, during the bloodbath in Kyoto touched off by the coming of Commodore Perry's black ships...there was a man known as the 'Hitokiri Battousai.'"
---> ''[Second panel: similarly composed bloody combat scene, with our hero central]'' This man was a major player in the Meiji Restoration, for his skill with a sword was unrivaled. Once the war was over, he vanished without a trace. Time passed and legends formed, of how he was the strongest samurai to walk the face of the earth."
---> ''[Third/last panel: Scary Eyes ImportantScar closeup]'' "And so, our story begins... In Tokyo, on the eleventh year of Meiji..."
---> ''[Two-page title spread, next page opens with Kaoru's shout]'' "HITOKIRI BATTOUSAI!"
* HugeGuyTinyGirl: Non-romantic between Bontenmaru and [[spoiler:Tokito]]. She can ride around on his shoulder.
* ImagineSpot: When Yuan is asked how he'd describe Hishigi, he says he's sort of like a mad doctor. This results in several characters trying to figure out what that means, imagining him DressedToHeal and also as a typically deranged MadScientist, among other things.
* ImAHumanitarian: All of the true Berserkers, but Haira especially can't shut up about it.
* TheIdiotFromOsaka: Both Benitora and Chinmei subvert it. Benitora is actually Tokugawa Hidetada and seems to have adopted the accent as part of his disguise; Chinmei's goofy accent is a deliberate juxtaposition to his vicious and deranged personality.
* ImportantHaircut: Akira cuts Okuni's hair instead of killing her in exchange for releasing Kyo's real body.
* ImplausibleFencingPowers: To the nth degree. Apparently, a sword stroke from Kyo or Hishigi has enough power to give truckload of high explosives a run for its money.
* ImprobableWeaponUser: Anthony's acupuncture needles, the real Mekira's chains, several others.
* IncurableCoughOfDeath: The Death Disease.
* InLoveWithYourCarnage: Izumo no Okuni is this way for Demon Eyes Kyo.
* JekyllAndHyde: Kyo and Kyoshiro. Subverted in the manga, played straight in the anime. [[spoiler:In the AlternateUniverse of the anime, Demon Eyes Kyo is actually the Id of Kyoshiro which he split from himself and placed in an ArtificialHuman body; they later reunite in their original body after Kyoshiro defeats Kyo, but this time as split personalities.]]
* JerkWithAHeartOfGold: Kyo's heart of gold is thoroughly buried, but it does surface occasionally.
* KickTheDog: Every minor villain that the heroes have to kill off has one of these moments. Every single one.
* LadyOfWar: Saisei and Akari.
* LargeHam: Bontenmaru. Also Kyo, at times.
* LastOfHisKind: [[spoiler:Kyo, the last True Mibu. Averted in the case of the Former Crimson King, who it turns out, is merely the first Battle Doll.]]
* LickingTheBlade: Name a character. Odds are good that they've done this at least once.
* LoadsAndLoadsOfCharacters: The cast is ''massive''; just check out the size of the character page.
* LovedOnesMontage: Kyo has one during a fight near the end of the manga, though it's about people he's learned from more than necessarily "loved ones".
* LukeIAmYourFather: [[spoiler:Kyo, the final direct descendant of the ''Original Crimson King''.]]
* TheMedic: Akari.
* MediumAwareness: Kyoshiro vs. Benitora: "Can we just pretend the last 5 pages didn't happen?"
* MexicanStandoff: One of Kyo's battles with Yukimura ends with them holding blades against each other's throats. This is one of ''very'' few times anyone really matches Kyo.
* MiseryPoker: Tokito throws a fit after losing to Akira, claiming to have had the worst life ever. Several other characters immediately top Tokito's sob story, but Akira "wins" with an entire panel detailing his horrific childhood.
* MobileMenace: The Mibu never seem to be inconvenienced by the size and complexity of their lair, except for when they've pulled a HeelFaceTurn, in which case, they have to slog it out with the other heroes.
* TheMole: Yukimura, when he pretends to defect to the Mibu's side.
** Don't forget Chinmei, [[spoiler:as Spade, to get his hands on Tokito's demonblade]].
** [[spoiler:Akari]] subverts this trope by virtue of mind control.
* {{Mook}}: The Mibu's army of regenerating soldiers. They ''are'' formidable in numbers, but they are mooks nonetheless.
* MrFanservice: Yukimura is very pretty and quite flirty with [[AmbiguouslyBi both men and women]].
* MutualDisadvantage: Yuan claims that he and Hishigi are "still even", and he might be right -- they're both extremely powerful and extremely fast, and that's why the only casualty of their battle so far has been [[SceneryGorn the terrain around them]]. Hishigi says he can tell that Yuan is running out of stamina, but he agrees they've reached a deadlock after the next exchange of blows continues to yield no advantage to either of them. As it turns out, Hishigi is [[IAmNotLeftHanded not using all of his]] [[DeadlyGaze available power]], but Yuan doesn't know that.
* MyNameIsInigoMontoya: Many {{Mooks}} confront Kyo like this. He generally does not remember whatever he did that earned their undying hatred, because [[ButForMeItWasTuesday for him it was Tuesday]].
* ObfuscatingStupidity: Hotaru is a good example, but the real winner is [[spoiler:the Former Crimson King, who acts like a nearsighted buffoon who's BlindWithoutEm. Tokito, who got taken in by the facade, actually starts plotting to overthrow him until the Former scared the living daylights out of her with murderous intent, showing Tokito and readers the true nature of the Former Crimson King]].
* OddFriendship: Benitora and Akira, who progress from {{Worthy Opponent}}s to TrueCompanions.
** [[{{Cloudcuckoolander}} Shihodo]] and [[TheStoic Hishigi]] in a flashback.
* OfficialCouple: [[spoiler:Kyo and Yuya]] and [[spoiler:Kyoshiro and Sakuya]].
** In the manga at least. In the anime, there's only Yuya's crush on Kyo/Kyoshiro and their growing feelings for her. [[spoiler:They are shown to have gotten together in the epilogue in the last episode -- where Kyo and Kyoshiro have been reunited into a single individual -- which takes place years later. Also Benitora and Mahiro in the ending of the anime.]]
* OhCrap: A common reaction to shit getting real. Most people fighting Kyo get at least one moment like this.
** It's the standard for people dealing with Hishigi. Even ''[[FearlessFool Kyo]]'' gets an OhCrap moment when Hishigi pulls off a FlashStep from a good twenty feet away, and suddenly he is right in front of Kyo and [[TakenForGranite Kyo's legs are petrified]]. Sasuke has a simultaneous and more expressive one. They both would have been dead if Kyoshiro hadn't stepped in.
* OneHeadTaller: If Kyo wore a Western-style button-down shirt, Yuya would hold conversations with/have infuriated outbursts at his breast pocket.
* OneManArmy: It would be easier to list the characters who AREN'T one.
* TheOnlyOneAllowedToDefeatYou: Yukimura towards Kyo. Also several other characters towards Kyo. He's very popular.
* ParentalAbandonment: Tokito and Hotaru. Yuan's family, too, after [[DisappearedDad Julian]] leaves them to focus on investigating and avenging [[MissingMom Ian's]] death.
* PersonalityPowers: Subverted. Hotaru, who [[PlayingWithFire uses fire]], nearly always remains calm and relaxed while fighting. [[HotBlooded Yuan]] plays the intense personality of the fire stereotype straighter, but he's still a nice, friendly guy overall. The [[AnIcePerson ice specialist]], Akira, presents a collected front and ''tries'' to stay that way, but he's easily frustrated when certain buttons are pushed. And [[MakingASplash water-user]] Shinrei loses his cool at the drop of a hat.
* PersonOfMassDestruction: Most of the cast. Especially Kyo, Hishigi, and the Shiseiten when they use their special combination attack.
* PetalPower: Saisei and Shirogarasu.
* PlotArmor: Can anyone name a non-villain who died at the end of the series? Sure, everyone gets badly beaten up, but...
* PoisonousPerson: Santera emits corrosive spores uncontrollably.
* PromotionToParent: Yuan's sister Anna, and Yuan himself to a lesser extent. Their father isn't dead, but he's not around often.
* PunchedAcrossTheRoom[=/=]BlownAcrossTheRoom
* QuirkyMinibossSquad: Taken to ridiculous extremes. You know they're overdoing it when even the main character gets one.
* RaceAgainstTheClock: After Shinrei implants a water dragon in Yuya's heart, the company have a limited amount of time to stop Shinrei before it kills her.
* RazorWind: The central principle of the Mumyo Jinpu Ryuu style that Kyo employs.
* RedEyesTakeWarning: Kyo is the literal incarnation of this trope. Subverted in that this becomes a major factor in the story later on.
* RedOniBlueOni: Kyo and Kyoshiro, Benitora and Akira, Fubuki and Hishigi, Shinrei and Hotaru
* RedemptionEqualsDeath: Several characters.
* ReallySevenHundredYearsOld: Most of the Mibu
* RetiredBadass: Shihoudou, Anri, Muramasa, arguably Julian (though he was never much of a fighter).
* ReverseMole: [[spoiler:Kyoshiro pretends to defect to the Crimson King's side in order to motivate Kyo and eventually give his body back]].
%%* RuleOfCool
* RunningGag: Hotaru trying to move caterpillars out of the way so they don't get crushed during fights.
* SamusIsAGirl: [[spoiler:Tokito, who stops Bontenmaru's fists with three fingers and actually ''punches through him'', despite the fact that one of his biceps is bigger around than her waist. She also starts off completely overwhelming Akira in their fight, and continues to do a massive amount of damage to him even after he powers up and starts to match her]].
** Admittedly, some fans weren't convinced she was a boy in the first place.
* SayItWithHearts: Or in Chinmei's case, glasses-wearing smiley faces.
** Yukimura is the worst offender with this trope. Also, in Shihoudou's dialogue, everything from baseballs to little umbrellas show up.
* SayMyName: Yuya and Kyo are the main offenders, but others do it too.
* ScaryShinyGlasses: Inverted in that Chinmei looks his most sinister when we can see what's behind those dark lenses
* SceneryPorn
** SceneryGorn: The scenery suffers a few times, notably when the Shiseiten use their combination attack and level a huge area of the Mibu stronghold. There's also Hishigi's fight with Yuan, which rips up the terrain around them as they deflect/avoid each other's extremely powerful attacks.
* SharingABody: Kyo and Kyoshiro.
* SheIsNotMyGirlfriend: Kyo's lack of reaction whenever someone tries to taunt him about Yuya.
** Akira has a few of these moments with [[spoiler:Tokito]]. His reaction tries to be like Kyo's. It fails, ''hard''.
%%* ShirtlessScene
* ShowerOfAngst: Yuya has a few of these.
* SingleStrokeBattle: Many of the early ones, when Kyo was more showing off his power than actually being challenged.
* SinisterSilhouettes: Full of them.
* SlipknotPonytail: Shinrei, during his fight with Fubuki.
* SortingAlgorithmOfEvil: After arriving in Mibu territory, Kyo starts off fighting mooks and advances through a sea of increasingly-powerful threats until he finally reaches the Former Crimson King.
* SpeaksFluentAnimal: Muramasa.
* TheStoic: You can count the times Hishigi's expression shifts from deadpan on one hand.
** NotSoStoic: When it does, you ''run''.
* SuperHeroSpeciation: Within any given group (the Shiseiten, Goyosei, Taishiro, etc), no two characters will have the same abilities. Tokito is ''capable'' of PlayingWithFire (Yuan's specialty), but it's not his main form of attack.
* SuperpowerMeltdown: As Kyo's battle with the Former Crimson King becomes more and more intense, he overloads into the "Demon God" state [[spoiler:of the True Mibu]] and completely loses his mind, unable to consider anything but fighting and killing. Yuya [[CooldownHug snaps him out of it]].
* SwordBeam: Hishigi creates these with his {{BFS}}, Hakuya. Other characters have techniques that can be placed in this category as well.
* TagalongKid: Akira was Kyo's before the TimeSkip.
* TearsOfBlood: Chinmei and the Former Crimson King.
* TheThingThatGoesDoink: There is one at the end of chapter 12.
* TimeToUnlockMoreTruePotential: Kyo's training with Muramasa. The TrainingFromHell is offscreen other than a couple of pages of Kyo looking extremely beat up and Muramasa informing him that he's going to die if he doesn't get stronger.
* TookALevelInBadass: Sooooo many characters... but especially Kyo, who starts off as a MemeticBadass that lives up to his legend and ends up being [[spoiler:a damn PhysicalGod]], taking lots and lots of levels in badass in between.
* ToughLove: Kyo toward Akira. Really, Kyo toward everyone he doesn't hate.
* {{Transsexual}}: Akari.
* TrashTalk[=/=]EvilGloating[=/=]TheReasonYouSuckSpeech: ''ALL OVER THE PLACE''. In the manga, they easily eat up one third (if not more) of ''every single duel''.
* TrueCompanions: The Shiseiten to both Kyo and each other, though they initially claim that they're only together due to a mutual pursuit of strength.
* {{Tsundere}}: Kyo is heavy on the tsuntsun, regularly calling his LoveInterest ''dog-face'' and ''Servant #1'', and has a really obnoxious habit of randomly feeling her up, no matter who happens to be watching. But the few moments in which he shows that he cares about her and the way he fights when she's in danger are surprisingly genuine and heartwarming, especially near the end of the manga.
* {{Tykebomb}}: Santera and Tokito.
* UnequalPairing: Kyo is twelve years older than Yuya (28 to her 16), attains PhysicalGod levels of power by the end of the manga, and early on in the story he physically intimidates and randomly gropes her on a regular basis. Thankfully, she doesn't start having any kind of feelings for him until he dials back the {{Jerkass}} behavior ''a lot''.
* UniversalAdaptorCast: They fit quite easily into their roles in Kamijyo's HighSchoolAU.
* UnstoppableRage: Kyo, after Nobunaga almost fatally wounds Yuya. More than a few people were a little freaked out.
* WalkOnWater: Shinrei and Fubuki.
* WeaponsKitchenSink: Katana are naturally the most common weapon, but everything from a three-barreled pepperpot revolver to acupuncture needles shows up.
* WhiteHairBlackHeart: Fubuki. Shinrei and Yuan are initially presented this way, but they later subvert it.
* WholesomeCrossdresser: Yukimura during the Tokugawa tournament. Everyone fell for it except Kyo.
* WholeEpisodeFlashback: Well, chapters.
* WorstAid: We've got characters ripping barbed weapons out of themselves, as well as the very common practice of dragging and/or carrying injured people around.
* WorthyOpponent: Kyo is considered one by multiple characters (Yukimura and Nobunaga, among others). Yuan and Hishigi also seem to consider each other this, with Yuan saying he's always wanted to know how a fight between them would go, and Hishigi saying he would have liked to fight with Yuan a bit longer.
* WouldntHitAGirl: Subverted, as the gentlemen of the cast have no problem hitting their female enemies. Yukimura plays with this trope - one can assume he wouldn't hesitate to fight a woman if he really needed to, but Kamijyo mentioned while confirming Basara's gender that Yukimura would never have killed a woman [[HalfTheManHeUsedToBe like that]]. Yuan also says he doesn't want to fight Akari because she's a girl, but he didn't hesitate to stomp Okuni earlier, so take that as you will.
* WreckedWeapon: Hishigi's and Fubuki's swords when Julian manages to break them. Also, Sasuke's Tenro copy cracks when he fights Kyo.
* [[YouKilledMyFather You Killed My Mother]]: Yuan ''[[BerserkButton loses]]'' ''[[UnstoppableRage his shit]]'' when he finds out who killed his mother (he knew the Crimson King had ordered her assassination, but not who had personally done it). Subverted in that the villain in question is still stronger than Yuan, and Yuan is not the one who ends up taking him down.

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