TV-Series
Description
Ellie is a pivotal character in the narrative, known by the formidable title of the Forbidden Witch. She is a Level 9999 SUR card, a classification that denotes her as an entity of immense and rare power, summoned by the protagonist Light through his ability, the Unlimited Gacha. Among the powerful cards Light comes to command, Ellie ranks as the third to be summoned, positioning her as one of his earliest and most critical allies in his quest for vengeance.

In terms of personality, Ellie is defined by a striking duality. On one side, she presents a playful, unfiltered, and seductive demeanor, frequently making adult-oriented or suggestive comments. She openly expresses her romantic and physical attraction to Light, whom she reverently calls Lord Light or Blessed Lord Light, often teasing him or displaying jealousy towards other women in his circle. This makes her the most forthright of his subordinates about her feelings. On the other side, this playful exterior masks a cold, calculating, and utterly merciless nature. Towards anyone she perceives as an enemy of Light, she is ruthless and cruel, viewing them as little more than trash or materials to be disposed of. This coldness comes to the forefront when she acts as the group's interrogator, using her magical abilities to analyze victims' memories and inflict calculated pain without hesitation.

Ellie's motivations are intrinsically tied to her absolute devotion to Light. Summoned to aid him after his betrayal and subsequent struggle for survival in the abyssal dungeon, her primary driving force is to serve his will and help him achieve his revenge against his former party members. Her role in the story is multifaceted; she is the group's primary magic caster, a brilliant researcher, and a key strategist who often devises the plans for Light's revenge plots. Beyond direct combat, she manages the magical infrastructure of Light's stronghold within the Abyss and the Giant Tower. On the surface, she operates under the alias Witch of the Giant Tower, deliberately drawing attention to herself to conceal Light's true identity and activities.

Ellie's key relationships are centered around Light and her fellow summoned cards. Her dynamic with Light is one of fanatical loyalty and deep affection, as she is outspoken about her desire to become his main wife, though Light remains focused on his revenge and personal goals. Among the four Level 9999 SUR cards, she considers herself the Third Sister, with Mei as the eldest, Aoyuki as the second, and Nazuna as the youngest. She often acts as a mentor to Nazuna, though their interactions are also marked by frequent bickering and rivalry over maturity and Light's attention.

Throughout the character's development, her dual nature as both a seductive devotee and a ruthless executor of Light's will remains a consistent trait. She is not a character who undergoes a fundamental personality shift, but rather one who reveals the depth and complexity of her existing traits as the stakes of the revenge plot escalate. Her abilities are as vast as her title suggests, master of all forms of magic including sorcery, elemental magic, and jinjutsu. She is responsible for completing the interpretation of the Dungeon Core, a significant feat of magical research. Her power is such that she is considered one of the Four Horsemen of the Apocalypse, specifically the Black Knight of Famine, wielding the ability to leave entire areas completely devastated.