Score 8.06

Darker than Black: Kuro no Keiyakusha

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Status: Completed Studio: Released: 2007 Duration: 24 min. per ep. Season: Type: Episodes: 25 Posted by: AC Released on: Updated on:

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Synopsis Darker than Black: Kuro no Keiyakusha

It has been 10 years since Heaven's Gate appeared in South America and Hell's Gate appeared in Japan, veiling the once familiar night sky with an oppressive skyscape. Their purposes unknown, these Gates are spaces in which the very laws of physics are ignored. With the appearance of the Gates emerged Contractors, who, in exchange for their humanity, are granted supernatural abilities.

In the Japanese city surrounding Hell’s Gate, Section 4 Chief Misaki Kirihara finds herself at odds with an infamous Contractor codenamed Hei. Called "Black Reaper" in the underground world, Hei, like his associates, undertakes missions for the mysterious and ruthless Syndicate while slowly peeling back the dark layers covering a nefarious plot that threatens the very existence of Contractors.

From the mind of Tensai Okamura comes a sci-fi thriller taking the form of a subtle exposé on a war in which political positions and justice have no sway—a war waged exclusively in the shadows.

Darker than Black: Kuro no Keiyakusha – Bearing the Weight of Darkness

Darker than Black: Kuro no Keiyakusha, a highly acclaimed anime series, follows an enigmatic operative codenamed Hei, who works for an unknown organization while living in a futuristic, post-apocalyptic Tokyo. This city, referred to as Hell’s Gate, is inhabited by Contractors, people who have gained supernatural abilities but lost their humanity in the process.

Hei, who is also a Contractor, along with his trusty team, embarks on various missions that involve interactions with other Contractors. During these engagements, Hei encounters revelations about his past and the incredible phenomenons related to the Hell’s Gate. Yet beyond the supernatural, the complex fabric of political intrigue and conspiracy keeps the narrative compelling and unpredictable.

Unraveling the Mystery in the Dark

The first thing you’ll notice about Darker than Black is its atmosphere. The creators have skillfully crafted a tone that is eerie, mysterious, yet compelling. This high-octane anime boasts an intriguing premise that gradually unfolds as fragments of information are cleverly disseminated through the series. This technique keeps the suspense alive, ensuring that viewers remain invested in deciphering the larger picture.

Yin, a stoic character on Hei’s team, and Mao, an anthropomorphic cat, serve as unique plot devices. Their interactions with other characters provide insight into the strange world of Contractors, triggering discussions about morality, purpose and the essence of humanity.

Sinister Action, Stark Reality

The action sequences in Darker than Black are comfortably balanced between vivid spectacle and grounded, grim realism. Hei’s battles, whether against humans or super powered Contractors, are depicted with a thrilling unpredictability and brutal aesthetic that subtly reinforces the inhuman nature of Contractors. The consistent narrative following these brawls makes them feel significant in driving the story forward.

A Symphony of Shadows – Music and Animation

Complementing the intriguing storyline is the hauntingly beautiful soundtrack. Yoko Kanno’s score superbly enhances the series’ mysterious ambiance, injecting life into every frame. The animation quality by Studio Bones is consistently solid, effectively capturing the desolate beauty of Hell’s Gate and the gritty urban landscapes.


Darker than Black is a grim and gripping watch, laden with supernatural elements woven within a web of political intrigue. It brilliantly explores the human condition and the toll of power, providing viewers with food for thought. Whether you are planning to stream, rent, or buy, Darker than Black: Kuro no Keiyakusha is an anime experience you certainly won’t regret lending your time to!

Darker than Black: Kuro no Keiyakusha
8.06 / 10 Reviewer
{{ reviewsOverall }} / 10 Users (0 votes)
Darker than Black: Kuro no Keiyakusha stands out due to its complex, intriguing plot and well-developed characters. The anime also boasts of exceptional animation quality and engrossing action sequences.
The narrative becomes a bit convoluted in the second half of the series, making it challenging to follow. Some characters lack substantial development, leaving viewers unsatisfied and somewhat detached from them.
In Darker Than Black: Kuro no Keiyakusha, viewers are immersed in a complex world where Hell's Gate has transformed some humans into Contractors, beings with powerful abilities. This anime excels in concocting unique superhuman abilities, an intricate plot and showcasing a stoic protagonist, Hei. Yet, it features a somewhat dark and melancholic tone, fusing action, mystery, and science fiction in an intriguing way.
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Characters & Voice Actors

Hei Main
Kiuchi, Hidenobu Japanese
Yin Main
Fukuen, Misato Japanese
Mao Main
Sawaki, Ikuya Japanese
Kirihara, Misaki Main
Mizuki, Nana Japanese
Huang Main
Ikeda, Masaru Japanese
Amber Supporting
Kawakami, Tomoko Japanese
November 11 Supporting
Inoue, Kazuhiko Japanese
July Supporting
Asai, Kiyomi Japanese
Havoc Supporting
Shindo, Naomi Japanese
Kurasawa, Gai Supporting

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