Green Blood is a {{Seinen}} series by Kakizaki Masasumi. Set in Industrial Age [[BigApplesauce New York]] after the American Civil War, specifically the vicious and lawless slum of Five Points, Green Blood is essentially ''Film/GangsOfNewYork'' in manga form. The series follows the lives of two Irish-Catholic brothers, Luke and Brad Burns who are trying to survive the best they can in a world where gangs run everything and everyone's corrupt. Luke is young and idealistic while Brad...well, Brad is an assassin for one of the biggest gangs in Five Points.
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* ArchnemesisDad: Edward King, the father of Brad and Luke and the series' BigBad.
* BatmanGrabsAGun: The good and seemingly pure Luke points a gun at his brother's Boss to defend Brad.
* BerserkButton: Don't harm Luke, if you know what's good for you. Brad will find you.
** Don't ever say to Kip that his size is "[[CompensatingForSomething cute]]". He'll do nasty things to you.
* BoomHeadshot: How Raymond kills some people who caused a ruckus in the Iron Butterfly [[spoiler:as well as JJ]].
* BigBad: Edward King.
* BigBadWannabe: Kip.
* BigBrotherInstinct: Brad for Luke.
* BloodKnight: Special nod to Dodo of the Crimson Gang.
* BreakTheCutie: Brad was broken ''hard'' as a child. Then Luke was. Jenny Macy gets it when her mother dies, and Ned Huddleston later on. However, all of them become stronger people for it.
* BullyingADragon: Yes, Kip, go up to Brad and tell him just how you had the Iron Butterflies kidnap Luke to lure in Brad. Only reason the little twit survived was Brad had more important things to do.
* ButForMeItWasTuesday: Played with. King outright admits he has so many enemies he can't possibly remember them all. But he's quick to pick up on Luke's reminder and understand who he is.
* CallingTheOldManOut: Edward gets a lot of (deserved) hate from his sons.
* ColdSniper: Eagle, the Sniper of the Crimson Gang is this in spades. Bonus points in that he never speaks a single word.
* CombatPragmatist: Brad doesn't believe in a fair fight.
* CompensatingForSomething: The gang war arc is kicked off when Kip hurls a prostitute out a window after she commented his size was "cute."
* CooldownHug: Brad gives one to Jenny [[spoiler: after her mother's murder.]]
* CoolOldGuy: One Horn of the Sioux.
* CruelMercy: Sparing Kip [[spoiler: when all he has to look forward to without his father's protection is a life of misery as a bum on the streets.]]
* DeathByOriginStory: Brad and Luke's mom was murdered [[spoiler:by their father]].
* DeathBySex: [[spoiler:JJ. A very RareMaleExample]].
* DestinationDefenestration: Karen.
* {{Determinator}}: Cut Brad and Luke to pieces, shoot them, smash them, do whatever you want. They will never, ever, ''ever'' quit.
* DirtyCoward: Kip.
** Gene [=McDowell=] constantly berates Edward King for having fled NY "the tail between the legs".
* DisappearedDad: Edward King, Brad and Luke's dad, left NY years ago, after [[spoiler:seemingly killing his their mum]].
* DissonantSerenity: Raymond's default mood. It's creepy as hell.
* TheDragon: Raymond for the Iron Butterfly.
* EarnYourHappyEnding: [[spoiler: After all the pain and bloodshed, the brothers succeed in their quest together and are able to embrace a future in which they're happy. Brad passes away peacefully decades later after returning to New York-and probably Emma, while Luke as an old man has children and grand children, who resemble [[BelligerentSexualTension Jenny Macy.]]]]
* EvenEvilHasLovedOnes: Gene [=McDowell=] may despise his son, but he won't allow him to be killed and will even risk his life for his sake.
** Utterly averted with Edward King who doesn't give a shit about Brad's mother or Brad himself. He doesn't even think of him as a threat and makes a very offensive comment the first time he talks about them.
* EvilCannotComprehendGood: Raymond doesn't understand why would Brad risk his life and career with the Grave Diggers after [[spoiler:he kidnaps Luke.]] Even after Brad explain [[MoralityChain his reasons]], Raymond still refuse to believe it.
* EvilCounterpart: Raymond is the ''eviler'' counterpart of Brad. He wears white, is usually cheerful and smiling. He also has no sense of honour or mercy, is a ManipulativeBastard, with quite the ego, and has not even the tiniest bit of humanity left.
* EyeScream: Plenty. [[spoiler: Edward especially gets his eye shot out by Luke.]]
* FakeUltimateHero: Charles Howard has a reputation as a kindhearted man and an economic hero of the town, but in reality, he's a GloryHound and egomaniac who has no issues having an innocent woman murdered for refusing to sell her farm to him.
* FauxAffablyEvil: Don't let Raymond's benign look and constant friendly smile fool you. He's utterly ruthless and won't hesitate to [[spoiler:kill a kid]] in cold blood to get what he wants. Edward is the king of this, though, and many of the Crimson Gang act like fully functioning human beings.
* GatlingGood: Ed King sells one to [[spoiler:Kip]] when he comes back to New York. Subverted, though: it is ultimately of no use against [[spoiler:Brad]].
** Used again by Edward King's man Parrot against Native Americans.
* HairTriggerTemper: Kip, very much so.
* HeroicSacrifice: [[spoiler: Black Horse of the Sioux dies to save his people and give them hope. Brad and Luke try this for the other at times, but never quite pull it off.]]
* HitmanWithAHeart: Brad.
* HookerWithAHeartOfGold: Emma.
* ImpliedLoveInterest: Emma and Jenny to Brad and Luke respectively.
* InfantImmortality: [[AvertedTrope Nope.]] [[spoiler:Poor JJ.]]
* InSeriesNickname: Brad is called "The Grim Reaper"
** NamesToRunAwayFromReallyFast
** RedBaron
* {{Jerkass}}: Edward King, very much so.
* JerkassFacade: Gene [=McDowell=] deeply cares for and respects Brad underneath his cold demeanor and he has always wanted to protect the Five Points.
* JiveTurkey: The black cattle thieves were given appropriate dialect for the day, but they're all intelligent and pretty good hearted people who're just tired of being trampled on.
* KnightTemplarBigBrother: Brad.
* LockedOutOfTheLoop: Luke. [[spoiler:Until the end of chapter fifteen]].
* MadBomber: Dodo of the Crimson Gang is their 'bomber.'
* MissingMom: See DeathByOriginStory above.
* MoralityChain: Luke, to Brad.
* MyGodWhatHaveIDone: Black Horse briefly experiences this when One Horn forces him to see the widows and orphans of his tribe: a result of war.
* NightmareFace: Kip has moments where he looks positively inhuman.
* NomDeMom: Brad and Luke use their mother's surname, Burns, instead of King.
* NothingPersonal: With the exception of the guys who hassled Luke in the first chapter, Brad says this to his targets.
* OffingTheOffspring: Edward King certainly has no qualms about trying to do this.
* PoliticallyIncorrectVillain: Edward King has very little use for women. While he himself never demonstrates much racism, his gang are vehemently racist against blacks and Native Americans as well, especially Swallow the Lariat.
* ProudWarriorRaceGuy: Black Horse of the Sioux.
* PsychoForHire: The whole Crimson Gang, but "Fast-Draw" Hawk earns a special notice.
* ReasonableAuthorityFigure: Really, for a brutal gangster, Gene isn't that bad a guy. he's protective over the prostitutes who work for him, and his gang as well and the ''only'' reason Kip survived after the shit he pulled was Gene loving him as his son even as much as he thought Kip was a loathsome little beast.
* RefugeInAudacity: Say what you will about Edward King, but his plot at the end to [[spoiler:rob a bank in Kansas City, using ''his own capture and execution'' as a distraction and holding the city hostage with a stolen navy warship]] is as ballsy as it is crazy. Especially as if Eagle had been ''one millisecond off'' on timing in shooting the hangman's rope, a man as heavy as King would've had the rope snap right there.
* RoaringRampageOfRescue: there's nothing subtle about the way Brad [[spoiler: rescues Luke from the Iron Butterflies]].
* ScrewThisImOuttaHere: Two mooks (one from the Grave Diggers, another from the Iron Butterflies) flee in terror after Brad managed to kill their respective parties even if he was encircled.
* SiblingTeam: Brad and Luke, [[spoiler:after both of them decided to leave Five Points and hunt their father down.]]
* SpoiledBrat: Kip [=McDowell=], explicitly named so by Raymond....and his own father.
* StepfordSmiler: Raymond is almost constantly smiling. He's also a brutal hitman.
* TeenyWeenie: Kip. Call it "cute" at your own peril.
* ThemeNaming: Hawk, Swallow, Eagle, Dodo, Parrot...Edward King seems to have a thing for birds.
* TookALevelInBadass: Luke, after the TimeSkip. Oh, so much. He's an even better marksman than his brother.
** In the final chapters, Luke single-handedly takes down [[spoiler:every member of King's gang that's present minus Eagle]].
* TragicKeepsake: Edward King's old watch with photo of him and Gene that Brad keeps as a memento that he has to kill King one day.
* {{Tsundere}}: Jenny Macy. And how!
* WarForFunAndProfit: Edward King's MO. he loves selling deadly weaponry, as well as his and his gang's [[PsychoForHire deadly services]].
* WeHaveReserves: A very, very rare ''heroic'' example. the Sioux and Cheyenne warriors throw themselves against the Gatling Gun wielded by Parrot of the Crimson Gang, willing to hurl their lives away until he's out of ammo.
* WhereAreTheyNowEpilogue: The final chapter ends with an elderly Luke, with his daughter and granddaughter, visiting Brad [[spoiler: who is buried next to their mother, and whose grave shows that he lived to the age of 68]].
* WhyWontYouDie: Said almost word for word by Kip after Brad somehow manages to not to be killed by [[spoiler:his Gatling]].
* WouldHitAGirl: Kip. Also, [[spoiler:Edward King killed Brad and Luke's mother]].
* WouldHurtAChild: Raymond would shoot one in the head.
* YouHaveFailedMe: Interesting variation. Edward doesn't seem too mad Swallow failed his mission before killing him. It's more that his failed henchman was helpless and King [[ForTheEvulz just took the chance to murder someone.]]
* ZergRush: Black Horse and the Sioux & Cheyenne at the battle of Hayfield. As noted in WeHaveReserves, the white men have a gatling gun, the Native Americans have nothing of the sort. They get through and win only because there's so ''many'' of them that the gatling runs out of ammo before it can kill them all.