Original Name
Romaji Name Yin
Nicknames N/A
Series Darker than Black: Kuro no Keiyakusha
Age N/A
Weight N/A
Height N/A
Date of Birth N/A
Blood Type N/A

Yin – The enigmatic spirit medium of Darker than Black: Kuro no Keiyakusha

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Yin, a central character in the anime series “Darker than Black: Kuro no Keiyakusha, is portrayed as an emotionless and stoic individual. As a spirit medium known as a “doll,” Yin’s demeanor is consistent with her role as a passive observer. Initially unable to express emotions or make decisions for herself, Yin undergoes a transformation over the course of the series, gradually displaying a growing sense of individuality and attachment to her companions.


Yin’s past is shrouded in mystery, and little is known about her life before she became a doll. She is of Finnish descent and her real name is Kirsi, derived from the Finnish diminutives of “Kirsikka” (meaning “cherry”) or “Christina”. Tragedy has marked Yin’s life, as her father died in a plane crash and her mother died saving her from an accident. This event weighs heavily on Yin, causing her to blame herself for her mother’s death.


Yin’s physical appearance is ethereal and enigmatic, reflecting her role as a spiritual medium. She has pale skin, silver hair, and striking blue eyes. Yin is often seen wearing a simple white dress, emphasizing her ethereal presence. Despite her seemingly delicate appearance, Yin possesses hidden strength and resilience.


Yin’s unique abilities revolve around water and observation. When in direct contact with water, she gains the power of tracking and surveillance. Her abilities allow her to perceive hidden truths and gather information vital to her team’s missions. However, Yin’s abilities are limited to her proximity to water, and she relies on her companions to provide the resources necessary for her powers to fully manifest.


The exact circumstances of Yin’s transformation into a puppet remain largely undisclosed. It is implied that her metamorphosis is related to her personal tragedy and emotional trauma. Throughout the series, Yin’s development as a character defies the initial limitations placed upon her as a puppet. She begins to exhibit emotions, form her own will, and actively choose to stay by her partner Hei’s side. This growth demonstrates her capacity for change and the complexity of her existence as a doll.

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Yin – FAQ

What is Yin’s role in “Darker than Black: Kuro no Keiyakusha”?

Yin is one of the main characters in the anime series “Darker than Black: Kuro no Keiyakusha”. She serves as a key character in the storyline and plays a significant role in the overall plot.

What are Yin’s abilities?

Yin has the ability to perceive and interact with the flow of information in the form of numbers and symbols. She can also manipulate these data streams and use them for various purposes, including hacking and computer-related tasks.

What does Yin look like?

Yin has a rather distinctive appearance. She has pale skin, long silver-white hair, and icy blue eyes. She often wears a black high-collared dress and is usually seen in a quiet and reserved manner.

What is Yin’s personality like?

Yin is known for her stoic and unemotional demeanor. She rarely shows outward signs of emotion and often speaks in a monotone voice. However, as the series progresses, her character evolves, revealing deeper layers and complexities.

Can Yin predict the future?

No, Yin does not have the ability to predict the future. Her powers are focused on information manipulation and perception rather than precognition or clairvoyance.

What is Yin’s relationship to Hei?

Yin shares a strong bond with Hei, the series’ protagonist. Initially, Yin serves as Hei’s observer and partner, assisting him on missions. As the story unfolds, their relationship evolves and a deep bond forms between them.

Does Yin have any weaknesses?

Yin’s main weakness is her vulnerability to the influence of others. Because of her passive nature, she is easily manipulated or controlled by those who wish to exploit her powers for their own gain.