Darker than Black: Kuro no Keiyakusha Gaiden

Darker Than Black: Gemini of the Meteor OVAs

What would you like to edit?

Alternative Titles

Synonyms: Darker than Black: Ryuusei no Gemini Specials, Darker than BLACK 2 OVA, DTB, Darker than Black: Ryuusei no Gemini Episode 12
Japanese: Darker than BLACK -黒の契約者 外伝
English: Darker Than Black: Gemini of the Meteor OVAs
More titles


Type: Special
Episodes: 4
Status: Finished Airing
Aired: Jan 27, 2010 to Jul 21, 2010
Producers: Square Enix
Licensors: Funimation
Studios: Bones
Source: Original
Genres: ActionAction, MysteryMystery, Sci-FiSci-Fi
Theme: Super PowerSuper Power
Duration: 24 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 7.911 (scored by 143302143,302 users)
1 indicates a weighted score.
Ranked: #7682
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #954
Members: 258,940
Favorites: 832

Available At


Ranked #768Popularity #954Members 258,940
Add to My List
Episodes: /4


Fleeing from the consequences of his decision at the Hell's Gate, superpowered Contractor Hei and his companion Yin take refuge in a quiet inn, adopting the guise of a married couple in order to not draw suspicion. In an attempt to recover from recent events, Hei befriends the inn's other guests. He discovers that one of them is a fellow Contractor tasked with killing him. Their resulting encounter spells disaster for both Hei and Yin, who are forced to fight for their lives and grapple with the emotional wounds sustained in their previous life together.

[Written by MAL Rewrite]

Characters & Voice Actors


Kiuchi, Hidenobu


Fukuen, Misato



Hazuki, Mina

Saiga, Mitsuki


Iwanaga, Tetsuya


Cook, Justin
Wakabayashi, Kazuhiro
Sound Director
Chiba, Daisuke
Episode Director
Whitley, Sean


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Tsukiakari no Michishirube (ツキアカリのミチシルベ)" by Stereopony

Ending Theme

"Can you fly" by Yasushi Ishii

Episode Videos


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 ...
Aug 15, 2010
Mixed Feelings
First of all, I would like to point out here that I'm trying to make this as unbiased as I can, unlike one of the other reviewers (whose name I won't mention) who after just 1 episode already predicted that this would be great. Clear sign of a fanboy. I'll be reviewing it on the basis of it's purpose, i.e. answering the questions that left you confused or unanswered in Ryuusei no Gemini.

I'll go through the other sections first though.

The artwork in this is very much in keeping with the second series. It's sharp and well animated, if not a bit too dark at times, ...
Feb 22, 2023
I like to pretend that DtB: Gemini doesn't exist.

I apparently need to include more words for this review. Okay: it introduces some clarity (maybe) and a little bit of extra lore, but it's just... so bad. Do yourself a favour: watch it for the sake of watching, and then forget about it. Pretend like it doesn't exist. "DtB: Gemini? Who dat? I don't know her."

The directing could be better. The newly introduced characters could be better. The team is amazing as always, but it's just... Not good. I think if they wanted to continue on, that an entirely different approach would've been more suitable.

Interest Stacks

32 Entries · 2 Restacks


Recent News

North American Anime & Manga Releases for May

North American Anime & Manga Releases for May

Here are the North American Anime & Manga releases for May 2015 Week 1: May 5th - 11th Anime Releases Astro Boy (2003) Complete Series Denki-gai Collectors'...read more

Side Story Episodes of Darker Than Black 2 Are DVD/BD Release Only [Confirmed]

According to dojin mangaka Guyohmaru's blog, Aniplex announced at a preview for the anime business people that four extra episodes of Darker than BLACK - Ryuuse...read more

Recent Forum Discussion

Poll: Darker than BLACK - Kuro no Keiyakusha Gaiden Episode 4 Discussion ( 1 2 3 4 )
maji_saikou - Jul 21, 2010
186 repliesby YankataY »»
Feb 6, 1:18 PM
Poll: Darker than BLACK - Kuro no Keiyakusha Gaiden Episode 3 Discussion ( 1 2 3 )
chocolaetmaelk - May 26, 2010
146 repliesby YankataY »»
Feb 6, 7:25 AM
Let me understand this?
Bard_Eren - Feb 5
4 repliesby Bard_Eren »»
Feb 6, 1:50 AM
Poll: Darker than BLACK - Kuro no Keiyakusha Gaiden Episode 2 Discussion ( 1 2 3 4 )
ShanaFlame - Mar 24, 2010
175 repliesby YankataY »»
Feb 5, 1:05 PM
Poll: Darker than BLACK - Kuro no Keiyakusha Gaiden Episode 1 Discussion ( 1 2 3 4 5 )
Shiro-cat - Jan 26, 2010
226 repliesby YankataY »»
Feb 5, 6:29 AM

Top 15 Most Iconic Anime Masks

Top 15 Most Iconic Anime Masks

Masks are worn for a variety of reasons-protection purposes, fashion, to hide one's identity, and so on. This goes for anime characters as well. The mysterious allure of their secret identity is something of true beauty. Let's check out some of the most iconic anime masks in existence!

by Ai_Sakura


Top 15 Anime Anti-Hero Characters: The Good, the Bad and the Ugly

Top 15 Anime Anti-Hero Characters: The Good, the Bad and the Ugly

In some anime series, we have come across protagonists who seem to act like the villains. Could they be considered heroes or anti-heroes? What exactly are anti-heroes? Let's check out some of the iconic anime anti-hero main characters!

by Ai_Sakura