Original Name ラムダデルタ
Romaji Name Ramudaderuta
Nicknames Lambda, Witch of Certainty, Witch of Absolute
Series Umineko no Naku Koro ni
Age 1000+
Weight Unknown
Height Unknown
Date of Birth June 20
Blood Type Unknown

Lambdadelta from “Umineko no Naku Koro ni

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Lambdadelta, also known as Lambda, is a whimsical and playful witch with a rather boisterous nature. She is characterized as childish and holds a grudge against Bernkastel, another witch, for defeating her in their last game. Despite this, Lambdadelta actually cares for Bernkastel. She has a mischievous personality and enjoys creating chaos and mischief. Lambdadelta’s demeanor is often jovial, and she can be quite unpredictable in her actions.


Lambdadelta is known as the most powerful witch in the universe and has lived for over a thousand years. She is feared by many other witches, including Beatrice. Lambdadelta lost to Bernkastel in their last game, which has fueled her desire to see Bernkastel lose to her. She is a Voyager, possessing the ability to travel between dimensions. Lambdadelta wishes to see Battler and Beatrice engaged in an eternal battle as part of her larger plan to defeat Bernkastel.


Lambdadelta has a distinctive appearance that befits her status as a powerful witch. She has long, flowing pink hair and wears a black and white dress adorned with various accessories. Her outfit includes a top hat with a red ribbon, a black choker, and white gloves. Lambdadelta’s eyes are often depicted as glowing red, further emphasizing her mystical nature. She has an air of elegance and power about her.


Lambdadelta possesses the “Magic of Certainty,” which gives her the ability to kill anyone with certainty, bending the rules of Umineko magic that normally require risk. Her power is swift and overwhelming, causing other witches to surrender in an instant. She can manipulate the outcome of events with absolute results, defying the usual limitations of magic. Lambdadelta’s powers make her one of the most formidable witches in the Umineko universe.


As a witch, Lambdadelta embodies the concept that hard work is rewarded. Although worshipped by humans, she remains capricious in choosing whom to reward. Lambdadelta’s power as a being respected by humans is immeasurable. She has existed for thousands of years and has accumulated vast knowledge and experience. Her ruthlessness and unpredictability were well understood by Bernkastel, which played a crucial role in Lambdadelta’s previous defeat.
Lambdadelta is a fascinating character in Umineko no Naku Koro ni. Her playful and mischievous personality, combined with her immense power and desire for victory, make her a compelling presence in the story. As one of the most powerful witches in the universe, Lambdadelta’s actions and abilities contribute to the intricate and mysterious world of Umineko no Naku Koro ni.

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Lambdadelta – FAQ

Who is Lambdadelta in “Umineko no Naku Koro ni”?

Lambdadelta, also known as the Witch of Certainty, is a character from the visual novel series “Umineko no Naku Koro ni” created by Ryukishi07. She is one of the main antagonists and a member of the witch side in the game. Lambdadelta is portrayed as a powerful and mischievous witch who delights in chaos and revels in the suffering of others.

What are Lambdadelta’s powers and abilities?

Lambdadelta possesses immense magical powers and is considered one of the most powerful witches in the Umineko no Naku Koro ni universe. Her abilities include reality manipulation, time manipulation, teleportation, and the power to create and manipulate probabilities. She is known for her unpredictable and seemingly omnipotent nature.

What is Lambdadelta’s personality like?

Lambdadelta has a bizarre and sadistic personality. She enjoys toying with the fates of others and creating chaos for her own amusement. She often displays a playful and mischievous demeanor, and is known for her tendency to make bets and wagers with other characters in the story. Despite her seemingly carefree attitude, she can be ruthless and merciless when it comes to achieving her goals.

What is Lambdadelta’s role in the story?

Lambdadelta plays an important role in the overarching narrative of Umineko no Naku Koro ni. She is one of the key witches involved in the game between the fighter Ushiromiya and Beatrice, another powerful witch. Lambdadelta assists Bernkastel, another witch, and acts as a catalyst for many of the events that unfold in the story. Her actions often have far-reaching consequences for the characters and the overall mystery of the series.

What is the relationship between Lambdadelta and Bernkastel?

Lambdadelta and Bernkastel have a complex and complicated relationship. They are often portrayed as close friends or allies, and they often work together to manipulate events and characters in the story. Lambdadelta’s mischievous nature complements Bernkastel’s more calculating and cynical personality. Together they form a powerful duo that influences the course of the story.

Is Lambdadelta a villain or an antagonist?

Lambdadelta can be considered a villain or antagonist in the context of “Umineko no Naku Koro ni”. She actively opposes the protagonists and engages in actions that cause suffering and chaos. However, like many characters in the series, Lambdadelta’s motivations and true nature remain complex and open to interpretation. She often acts as a catalyst for story development and plays a role in unlocking the game’s mysteries.