!Recurring characters:

!!Kubota Makoto
* AffectionateNickname: Is fondly called "Kubo-chan" by Tokito.
%%* BadassLongcoat
* BerserkButton: While Kubota maintains a stoic attitude no matter what he is feeling, but harm Tokito in any way, he will show no mercy [[spoiler: shown especially when he kills his old yakuza underlings and friends when Tokito gets kidnapped by them]].
* BewareTheNiceOnes: While Makoto may not be ''nice'', per se, he is outwardly calm and polite...until [[TooDumbToLive you attract the wrong kind of attention from him]].
* BunnyEarsLawyer: Lampshaded by Komiya.
* CombatPragmatist: ImprovisedWeapon; HumanShield; JackBauerInterrogationTechnique; TrojanHorse; InTheBack; ShootTheDog. And he [[ArsonMurderAndJaywalking cheats at mahjong]].
* DisproportionateRetribution
* TheDragon: Makoto is this for Sanada and the Izumokai group for a short period of time.
* EvenTheGuysWantHim
* GangstaStyle: That or a crippling firearm-specific wrist deformity.
* {{Megane}}: FourEyesZeroSoul, and [[SpecsOfAwesome they don't come off]]. ScaryShinyGlasses is often subverted, the better to see his DeathGlare.
* OverTheShoulderCarry: Carries Tokito like this when he first brings him to his apartment in chapter 26.
* ParentalNeglect: The implied reason for his social detachment. The HeroicBastard of a MysteriousParent, he was ignored by the people who raised him and scarcely less so by Kasai, who became his guardian after the death of his [[SonOfAWhore mother]].
* ShipTease: With Tokito.
* SmokingIsCool
* TheStoic: With NervesOfSteel.
* WillTheyOrWontThey: With Tokito.
* YoungerThanTheyLook: Kubota looks to be in his twenties, at least 21, and older than Tokito, he is really only 17.

!!Tokito Minoru
* AmnesiacHero: TraumaInducedAmnesia, with {{Troubled Backstory Flashback}}s that hint at a DarkAndTroubledPast, perhaps involving TestedOnHumans.
* {{Deuteragonist}}
* DistressedDude: In the second, fifth, and sixth volumes.
* EvilHand: His bestial right hand is a symptom of usually [[SideEffectsInclude fatal]] W.A. use. The hand is [[DoesNotKnowHisOwnStrength abnormally]] [[CursedWithAwesome strong]], but causes him fits of extreme pain, and the affected area is growing.
* MoralityPet: Kubota's yardstick of good and bad is, essentially, what is good or bad for Tokito.
* NoSocialSkills: He was socialised by [[RaisedByWolves a ten-year-old boy... and Kubota]]. Kubota says that he [[BrutalHonesty only speaks the truth]].
* OlderThanTheyLook: Tokito looks to be about 16 and physically appears younger than Kubota, he is actually three years older than Kubota, at the age of 20.
* {{Protectorate}}: Kubota's, and vice versa.
* ShipTease: With Kubota.
* {{Tsundere}}: Both types, he's very affectionate and close to Kubota, but shows discomfort when someone suggests they are lovers, but also he can be short-tempered towards Kubota, but doesn't like it when someone makes advances towards him, bordering on CrazyJealousGuy.
* WillTheyOrWontThey: With Kubota.

!!Kasai Keiichiro
* CoolOldGuy
* DirtyCop: Makoto states that his uncle Kasai is "probably the most crooked detective in all of Japan." It's unclear how true this is, as Kasai hasn't yet been seen doing anything to earn him this distinction besides giving his nephew information on cases of interest.
-->'''Kasai''': Listen, boys. I don't actually give a fuck ''who'' did it.
* FirstNameBasis: The only character who addresses Kubota as Makoto.
* FriendOnTheForce: A good source of cover-ups, access to crime scenes, and official research on W.A.; he and Araki sometimes act as MrExposition for the latter.
* OldCopYoungCop: With his partner Detective Araki.
* ParentalSubstitute: Kubota's maternal uncle, who adopted him as a teenager.
* HandsOffParenting
-->'''Kasai''': Hey, Makoto. So it's true? You're with Izumo now?
-->'''Kubota''': Yeah, I guess. [[SeemedLikeAGoodIdeaAtTheTime Seemed like]] [[DamnItFeelsGoodToBeAGangster a good idea.]]
-->'''Kasai''': I ain't gonna question your life choices, kid.

* CrypticConversation
* ArmsDealer: Of the Gangland Gun Runner variety.
* BackAlleyDoctor: [[RunningGag And veterinarian.]] Unlicensed...
* ShopKeeper: ...and owns a shop...
* StereotypesOfChinesePeople: ...in the [[FriendlyLocalChinatown Chinese district of Yokohama]].

* AffablyEvil
* AmbiguouslyGay: Other than [[SleightOfTongue hitting on Kubota]], his sexual preferences aren't specified.
* TheDon: leader of the [[{{Yakuza}} Izumo group]].

!!Sekiya Jun
* DragonAscendant: becomes leader of the [[{{Yakuza}} Tojou group]].
* FourEyesZeroSoul
* SissyVillain: A CampGay, DepravedHomosexual AgentPeacock of a {{Gayngster}}.
* WouldHitAGirl: A ''pregnant'' girl.

!!Takizawa Ryoji
* IntrepidReporter
* EyesAlwaysShut

* OldCopYoungCop
* VomitingCop

!Single-arc characters:

!!Komiya Nobuo
* EvenBadMenLoveTheirMamas
-->'''Komiya''': What the hell were you doing?! I get your drugs! ''I'' do! That's not enough for you, you whore?
* FirstPersonPeripheralNarrator: The narrator and Kubota's {{Sidekick}} during the prologue arc.
* SonOfAWhore: He joined Izumo because they own the [[BandOfBrothels establishment]] where she works.
* StupidSexyFlanders: Komiya seems to have a few moments of this when he's around Makoto.
* {{Yakuza}}: The [[NumberTwo second-in-command]] of the Izumo youth group.

!!Ookubo Saori
* FirstPersonPeripheralNarrator
* DamselInDistress
* TeenPregnancy
* TheRunaway

!!Mitsuhashi Kayo
* [[ConMan Con Woman]]
* FemmeFatale
* TheSocialDarwinist

!!Shimura Ken
* FirstPersonPeripheralNarrator
* {{Salaryman}}

* FirstPersonPeripheralNarrator
* HookerWithAHeartOfGold

!!Iizuka Shouta
* FirstPersonPeripheralNarrator
* IneffectualLoner

!!Kiba Osamu
* FirstPersonPeripheralNarrator
* TheDragon
* {{Yakuza}}

* Anti-Villain
* AProtagonistIsRyu
* {{Yakuza}}

!!Sato Yoshiro
* {{Yakuza}}