Ranked #358

Darker than Black: Kuro no Keiyakusha Gaiden

Alternative Titles

Synonyms: Darker than Black: Ryuusei no Gemini Specials, Darker than BLACK 2 OVA, DTB
Japanese: Darker than BLACK -黒の契約者 外伝


Type: Special
Episodes: 4
Status: Finished Airing
Aired: Jan 27, 2010 to Jul 21, 2010
Source: Original
Duration: 24 min. per ep.
Rating: R - 17+ (violence & profanity)
L represents licensing company


Score: 8.141 (scored by 67,595 users)
Ranked: #3582
Popularity: #329
Members: 110,121
Favorites: 512
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.


Tells the story of what happened to Yin and Hei between the first and second series.


No background information has been added to this title. Help improve our database by adding background information here.

Related Anime

Characters & Voice Actors

Kiuchi, Hidenobu
Kiuchi, Hidenobu
Fukuen, Misato
Fukuen, Misato
Hazuki, Mina
Hazuki, Mina
Saiga, Mitsuki
Saiga, Mitsuki


Wakabayashi, Kazuhiro
Wakabayashi, Kazuhiro
Sound Director
Yanagisawa, Tetsuya
Yanagisawa, Tetsuya
Nishimura, Hiroyuki
Nishimura, Hiroyuki
Ishii, Yasushi
Ishii, Yasushi
Theme Song Performance, Music

More episodes Episodes(1/4)

# Episode Title Aired
1 Darker than Black: Kuro no Keiyakusha Gaiden 1
Jan 27, 2010

Opening Theme

No opening themes have been added to this title. Help improve our database by adding an opening theme here.

Ending Theme

"Can you fly" by Yasushi Ishii

Write a review | More reviewsReviews

Dec 24, 2014
The first season of “Darker Than Black” left the exact fate of two of its central cast in an ambiguous state. This four part OVA continues the story past the first season finale while serving as the transition into the new direction second two would take in Ryuusei no Gemini. This OVA combines the strength of both season into a nice package telling a compelling story, interesting leading characters, and great action scenes.

Good: Fills the gap between seasons 1 & 2

This four part OVA can be summarized as a “couple on the run” sort of story. Hei and Yin are trying to survive daily life read more
I found this review Helpful
Dec 24, 2013

I'll keep this short: Anyone who is a fan of Darker than Black NEEDS to find a way to watch these 4 episodes; they are crucial to understanding so many things about the series, including several things that didn't make sense in season 2, the relationship between Hei and Yin, and Hei's character development.

The OVA bridges the gap between seasons 1 and 2, explaining what happened to Hei and Yin during that time, and not only is this information vital to the plot, it is incredibly entertaining. This OVA is 4 episodes of pure awesome, as we finally read more
I found this review Helpful
Jun 26, 2010
This is the bridge between Kuro no Keiyakusha (Season 1) and Ryuusei no Gemini (Season 2). For those who watched both seasons THIS IS A MUST! In these 4 episodes they will explain the holes in Ryuusei no Gemini.

(Will update as season ends)

Story: 9/10

These 4 episodes explains about the gap in the 2 years between season 1 and season 2. Like before of DtB, the story is well executed and polished. It is based on the character development between Hei and Yin. Also answers many of the questions that were brought in season 2.

Art: 9/10

Amazing, I would say it is better read more
I found this review Helpful
Mar 21, 2010
With just one episode aired I believe we all more or less know what it's going to be about. So let me explain this a bit to those who haven't got their hands on the first episode yet.

Story : The story clearly takes place between 1st and 2nd season. As written above, it's main purpose is to shorten the gap between 1st and 2nd season.
If you've finished just 1st season, this is just like watching another episode of it. If you've seen 2nd season too, it's pretty much a flashback, but a very critically needed one. I myself was pulled in the story read more
I found this review Helpful


Anime: Rurouni Kenshin: Meiji Kenkaku Romantan - Tsuiokuhen
Both have very similar storylines .The protagonists are escaping from an establishment .Builds a base for the series to progress .High on action and emotions. 
reportRecommended by kaushik17
Anime: Ga-Rei: Zero
At first, both these animes have a similar drama component: in order to do their duty main characters have to kill their loved ones, however in Ga-Rei Zero drama is payed more atention to and is more deep than in DTB. Both these series deal with organisations exterminating threats to the mankind (ghosts in GRZ case and contractors in DTB case). Sure thing there are mystical powers and supernatural abilities included. Also, you will feel painfully sorry for main characters whichever you watch.
In case you watched DTB only because of action and fights, it's unlikely you will like GRZ. There is action  read more 
reportRecommended by lotrus28

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