『Kurumi Tokisaki』

Birthday: June 10

Height: 157 cm (5'2")

Code name: Nightmare

Spirit number: 3

Species: Spirit

Angel: Zafkiel

Weapon: Clock type

Astral Dress: Elohim

Affiliation: Raizen High School (temporary)

Hobbies: Killing people, teasing Shidou

Likes: Weaponry, sweets, kitties

Dislikes: Humans, AST

Strength: 109

Consistency: 80

Spiritual power: 220

Agility: 103

Intelligence: 201

Rank: S-Class Spirit

Famous quote: "I want his power. I want to make him mine and become one with him."

Kurumi Tokisaki is the main antagonist in the series. She is the third Spirit to be encountered in the series and is the most dangerous and lethal Spirit. She is heavily obsessed with Shidou and has the ability to manipulate time. Her codename is Nightmare. She has a split personality: that of a gentle, mysterious high school girl with a slow talking pattern, and that of a psychopathic killer. Kurumi is very aggressive in her actions which makes it harder for Shidou to capture her. Kurumi can be described a person whose personality is hard to read, possessing a well-polished dislike of humanity that borders on mistrust, something she shared with many Spirits in their debut. She is a skilled actress, capable of putting on the façade of an innocent, curious young girl when she needs to, shown when she registered as a student at the Raizen High School, even speaking in a very polite manner; however, under that mask lies a psychotic woman, prone to fits of insane laughter that possesses no regard for human life, regarding them as a food source to restore her own time, and thus, a disposable commodity. There is a twisted justice behind her methods, however, as the people that she brutally murdered were would-be rapists and animal abusers. In hindsight, Kurumi possesses some degree of innocence that her psychotic behavior have not entirely ruined; she has a soft spot for small animals and other creatures. She once slaughtered four humans not because she needed to replenish her time, but because they were trying to kill a kitten, this is the closest to a humanizing emotion that she has. Mana reported that Kurumi is the most dangerous spirit known, who has personally killed over 10,000 people which does not include the spacequake's victims within that statistics. Kurumi used unstated and unexplained methods to personally transfer into Shidou Itsuka's high school and classroom so she can get closer to him. Her purposes and reasons in this transfer are simple; consume Shidou Itsuka, in doing so gain their memories, goals, fears and obsessions. In some non-canon stories, the clone Shidou seduced shows some "independent" attitude, almost rebellious, and openly acts lovey-dovey with Shidou, which causes troubles to the "main" Kurumi and even leads to confrontation with her.

It's also hinted that the experiences a clone lives affect the the main one since, after helping Shidou locate Touka (so Kurumi could track the Second Spirit) and parting ways, Kurumi is shown talking to her clones and being happy because she received a pat on the head from Shidou.

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