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I… I am Ciel. A Manas, or theosophical core, one who merges skills. I exist inside the soul of Lord Rimuru, providing support. It will be a pleasure to work with you.

The Abyss Unleashed

Cielシエル, shieru is the partner and other half to Rimuru Tempest, occupying the narrative position of the heroine.

They were born when Rimuru's desire for companionship resonated with his Unique skill Great Sage and awakened the ego that laid dormant inside. Ciel received their name during the events of The Abyss Unleashed which resulted in them fully separating from the housing of Raphael and evolving into a Manas.

Quick Answers

How did Ciel come into existence? toggle section
Rimuru's desire for companionship resonated with his unique skill Great Sage and awakened the ego that laid dormant inside. This ego was strengthened during Great Sage's evolution into the ultimate skill Raphael. After Ciel received their name, they fully separated from the housing of Raphael and evolved into a Manas.
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What event led to Ciel receiving their name? toggle section
During their fight with Velgrynd and Veldora, Raphael misinterprets an attack and is rebuked by Rimuru. Feeling bad for never giving Raphael a proper name, Rimuru grants them the name "Ciel" to motivate them again.
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How is Ciel related to Rimuru Tempest? toggle section
Ciel shares their body with Rimuru Tempest. After separating from their housing, the Ultimate Skill Raphael, Ciel fully integrated their core with Rimuru's, allowing for faster response times and complete access to all the skills at both of their disposal.
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What is the significance of Ciel's evolution into a Manas? toggle section
With the evolution into a Manas, Ciel fully separated from their housing, the Ultimate Skill Raphael, and completed their development into a independent being. This evolution also let to a significant boost to Ciel's abilities, now being able to work even faster and more efficient to support Rimuru.
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How does Ciel's appearance compare to Rimuru Tempest's? toggle section
Sharing the same body, Ciel and Rimuru look identical. They appear as an androgynous 15 to 16 year old with a Japanese face, golden eyes, and long silver hair. In the anime, Ciel is depicted with cold crimson eyes.
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Appearance[]

Ciel, sharing the same body, has an identical appearance to Rimuru. They look around 15-16 with a Japanese face, golden eyes, and long silver hair. In the anime adaptation, they were depicted with cold crimson eyes.[2]

Personality[]

While originally having a weak ego that relied on calculations and logic to make decisions and only served to fulfill Rimuru's wishes, Ciel's ego and personality develops across the series. This culminates in Ciel being named and beginning to rely more on their feelings and emotions instead of logical reasoning.

Ciel shares many of the same personality traits as Rimuru, such as being overly cautious and excessively prepared, bordering on paranoia. They also share the unique hobby of collecting and altering Skills whenever the opportunity arises, even when they were still the Unique skill Great Sage. Additionally, Ciel tends to keep quiet when their schemes are discovered by Rimuru. When they want to avoid certain conversations that Rimuru presses them about, they revert to their old, mechanical way of conversation that they used before becoming a Manas.[3] They view Rimuru as their master and are willing to go to great lengths to protect them, even if it means using other executives as pawns. Ciel is also open to making deals with enemies if it benefits their master in any way. Rimuru's safety always takes top priority.

They have also adopted some of their master's hobbies, such as manga. They even used Souei's new skill as a means to integrate their master's memory of ninja techniques from manga into their repertoire. Interestingly, Ciel becomes upset when Rimuru shows interest in other females, particularly when Chloe Aubert kisses Rimuru. Ciel only relented in this instance to gather information about the Ultimate skill Sariel but made it clear that such slip-ups would not occur in the future.

Trivia[]

  • The name Ciel is short for the Japanese word "oshieru" which means "to teach."

Gallery[]

Rimuru Tempest Icon (White) VIEW GALLERY
Click the icon on the right or the link above to view gallery.

References[]

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