History DarkerThanBlack / SeasonOneTropesNToZ

* SuperWeight: Ranging from -1 to 0 for normals and dolls all the way up through 4 for Amber, [[spoiler:Hei/Bai in the Gate]], and possibly Izanami. Most Contractors are about a 2, with some (Havoc, {{Gravity Master}}s, and Hei by virtue of being absurdly badass anyway) coming in at 3.

* SuperpowerRussianRoulette: Contractors can have powers all over the place on the SuperWeight scale, but it's also possible to get turned into a Doll or Moratorium or have a remuneration that can kill you.

* ShipSinking: Out of Hei's potential love interests, Kirihara is the only one who [[spoiler: survives for more than two episodes.]] Oh, and Yin if you count her.

* SaltAndPepper: November 11 and April.

* NakedFirstImpression: Played with, since the naked party is a man, and the other is a cat... yeah.
** An absolutely ''mortified'' cat. Seriously, the look on Mao's face is priceless.

** In his first appearance, November 11 has one. A gangster tried to double cross him, and ends up frozen in the middle of a street. After begging November 11 not to kill him, the gangster reveals the location of the [[GirlInABox package]] November had intended to pay for. November 11 pats him on the shoulder and says something like "I knew we'd work well together". As November walks away, the guy freezes solid and smashes on the street.

* WeaponOfChoice: Hei fights with throwing knives and a choke wire. Handy since they conduct electricity.

* ShownTheirWork: The series is painstakingly researched in most imaginable aspects, down to copying a foreign language graffiti in distant locations and accurately representing various [[RareGuns obscure guns]].

* PowerGlows: Contractors using their powers are surrounded by a cool-looking blue aura, and [[GlowingEyesOfDoom their eyes]] glow [[RedEyesTakeWarning red]]. This is taken UpToEleven [[spoiler:when Hei gets a little... upset... near the Meteor Shard, which makes the entire ''neighborhood'' and everyone in it glow.]]

* ObstructiveBureaucrat: TheSyndicate seems to use these as an added safety net. Also, there's the [[WhatAnIdiot morons]] at the American embassy.

* YouGottaHaveBlueHair: A number of characters, usually Contractors and Dolls, have improbable hair colors like green, pink and white.

** Of course, this time [[GenreSavvy she's right]].

* ThoseTwoBadGuys: The third episode has a Caucasian assassin paired with a black Contractor and the two are a good fit for the trope and definitely call to mind ''Film/PulpFiction''. More sympathetically, Bertha and her partner have philosophical discussions establishing them as {{Punch Clock Villain}}s, in between trying to kill Hei.

* StealthHiBye: One reason Hei is known as [[FanNickname Chinese Electric Batman]]. He has a distinct tendency to vanish if he's out of someone's sight for even a second. Arguably the most impressive was when he disappeared from ''right in front of Kirihara'' during the time it took her to put on her glasses, while sporting a bullet wound that had him limping so badly he was having trouble walking.

* NotSoDifferent: There's a lot of moments that show the audience how the protagonists and some of their antagonists aren't really different. For instance, the episode explaining Bertha's past parallels it with flashbacks of Yin's past and shows a similarity between the two; November 11 is told by the Evening Primrose members that he should do what's logical and join them, and he recalls telling Hei the same thing- although, November 11 concludes they are very different, as Hei acts illogically, while November 11 thinks it's logical [[spoiler:not to join Evening Primrose]]; Hei's advice to Kirihara in one of the last episodes to "trust no one and rely on her intuition" is pretty much word-for-word the same warning November 11 gave her, causing her to do a bit of a double-take.

** Of course, this time [[GenreSavvy she's right]].
* ZettaiRyouiki: By Kiko and her friend. Possibly Yin too if she uses a lower skirt.

* SecretIdentityIdentity: Hei is arguably three people- the "Black Reaper", a mass-murdering [[MookHorrorShow unstoppable]] contractor; "Li Sheng Shun", a kind-hearted but naive [[{{Adorkable}} dork]]; and the real "Hei", [[spoiler: a gentle, friendly guy who hardened his heart and TookALevelInBadass so he could stay with his [[BigBrotherInstinct beloved sister]] after she turned into a cold-blooded killing machine]].

* ObfuscatingStupidity: Hei in his "Li Shengshun" persona. Not ''stupid'', just so naive, clumsy, and {{Adorkable}} that no one thinks to look for the Black Reaper behind that smile.