|Others:||Demon Girl (悪魔 女, Akuma Onna, Takumi’s nickname for her), Rimicchi (Seira’s nickname for her), Katze (German for cat, Takumi’s nickname for her in ChäoS;HEAd Radio Delusional Radio Channel)|
|Birthday:||July 3, 1992|
|Occupation:||Suimei Academy Second Year Student|
|Debut (Manga):||Chapter 1|
|Debut (Anime):||Episode 1|
|Appears in:||Visual Novel, Manga, Anime|
|Japanese Voice:||Eri Kitamura|
|English Voice:||Carrie Savage|
Rimi is a teenage girl with long, pink-hair with a dark pink hair ribbon at her left side of her head.
She wears the same Suimei Academy uniform as the other girls, wearing the bow version instead of the tie version. She has two dark pink eyes. While Rimi is quite cute and good-looking, she doesn’t consider herself as good-looking as some of the other girls like Ayase Kishimoto or Yua Kusunoki, due to low self-esteem. Still, Takumi and Misumi are both attracted to her.
Rimi is shown as a cheerful and kind girl, acting as a friend and support for Taku. Rimi’s original personality no longer exists, and her current personality is one that was born from a delusion she had when being tortured. She is kind and caring towards Takumi Nishijou and others, although the Takumi she really cares about a whole lot is not the borderline-hikikomori one who calls himself Neidhardt online, but the prematurely aging patient at AH Tokyo General Hospital who calls himself Shogun online.
She pretends to be dumb and not understand things, but she actually understands everything and keeps it secret. She also pretends to be cheerful, but that is also just a front and really, she is suffering quite a bit and has low self-esteem, and is not quite as kind and caring as she pretends to be. One of her main motivations is to prevent the Neidhardt version of Takumi from awakening, because she wants to protect Shogun and is obsessively devoted to him. Her gigalomaniac powers give her the abilities of mind-reading and mind control, although her mind control only works on normal people, not fellow gigalomaniacs like Takumi. Her mind-reading is more powerful and works on everyone, including fellow gigalomaniacs.
She uses her mind control abilities to become a student at Suimei Academy and friend of Takumi and Misumi, and to convince everyone besides her fellow gigalomaniacs that she has been a student there and friends with them a long time. Since Takumi is immune to her mind control, she needs to take a more direct approach with him and persuade him through both conversation and her actions, as well as by manipulating others like Daisuke Misumi through mind control. She also constantly uses her psychic mind-reading powers during conversation, sometimes accidentally replying to things the other person was thinking but not saying out loud, but thankfully for her, nobody figures this out.
So despite the warm, caring, somewhat ditzy personality she pretends to have, deep down inside she is actually fairly cold, calculating, and manipulative, in order to achieve her own goals. This is typical for gigalomaniacs, who have similar personalities to megalomaniacs and who all tend to be manipulative, obsessive, self-centered, and delusional, with an unstable sense of self. In fact, all of the main characters in ChäoS;HEAd, with the exception of the fictional Seira Orgel, are gigalomaniacs who have those same personality traits of narcissism.
However, Rimi claims to be Taku’s genuine friend and that she has always cared for him. She also has a habit of saying “Bishi!” (ビシィッ！, Bishī!), making it her catchphrase (translated as “Ten-hut!” or “Salute!”, which she says while saluting). “Bishi!” is a made-up catchphrase just like “Tutturu~!” and “El Psy Kongroo” are in Steins;Gate, and like those other phrases, it doesn’t actually mean anything. She usually says it when Taku is feeling bad, to try to cheer him up, and always salutes when saying it. Her favorite food is buckwheat, and she is the main heroine of ChäoS;HEAd.
And Rimi uses her psychic powers for good, like after Ayase Kishimoto attempts suicide and Taku real-boots a flowerbed for her to land on on October 27, 2009, and Ayase is taken to the hospital, Rimi uses her mind control powers on the doctors, nurses, and medics to make sure Ayase is given top-priority treatment, higher priority than all the victims of the Second Melt earthquake that happened the same day, who are mostly just unconscious and don’t require immediate care like Ayase.
A few years before meeting Taku, Rimi was held captive by N.O.Z.O.M.I. They tortured her in order to get samples for Noah II, by way of the special brainwaves that gigalomaniacs emit. The Rimi the story knows isn’t the original personality of Rimi, it was born from a delusion that she created when she was being tortured. She thinks that there have been many of these personalities before, and she just keeps creating new ones to forget the pain. But in the final incarnation, the real Takumi Nishijou (Shogun) spoke to her and showed her a blue sky, and she desired to see the real thing. Then she was released from N.O.Z.O.M.I. and began helping Shogun manipulate and help Taku.
When Taku was walking back home one day, he saw a mysterious pink-haired girl at the scene of the third New Gen crime, the Staking, in the process of fixing the body to the wall with sharp metal stakes. At that time, she was wearing Suimei Academy’s uniform and appeared to recognize Taku. She called him by his name and told him she’d wanted to see him so very much before he ran away screaming. A few days later, she appeared in Suimei Academy as a student (the first time Taku met her and talked to her after the staking in the anime, but the second in the visual novel, since in the visual novel, she introduces herself to him at his base prior to the first time Taku saw her at school).
Although Taku had no memory of her at all, all of the other students recognized her and accepted that she had always been part of the class. She also claimed to be very close friends with Taku and Daisuke Misumi, the later agreeing with her story (in the visual novel, this is via a phone conversation with Misume when Taku and Rimi are at Taku’s base, while in the anime, this happens at school in person). Naturally, Taku was extremely frightened of her, to the extent that he called her the “Demon Girl” (悪魔 女, Akuma Onna). He even believed her to be a literal demon and told that to the police (specifically Detective Yasuji Ban who had Detective Mamoru Suwa with him at the time). As an unorthodox detective who takes supernatural explanations seriously, Detective Ban actually took Taku’s story seriously.
Even though Taku was afraid of Rimi and thought she was the New Gen killer, he gradually warmed up to her and learned to trust her after she saved him in the Shibuya Crossing when he spaced out and saw Shogun there and nobody else besides Shogun, and after awhile their friendship became genuine. But then later in the story, she revealed that she was a gigalomaniac and that she was very close to Shogun and that he was the real Takumi Nishijou, and that Taku was just a delusion. She and Taku end up teaming up as the main heroine and hero of the story to defeat Genichi Norose and stop Project Noah from happening.
- The name Rimi means "pear" (梨) (ri) and "deep" (深) (mi).
- Rimi's surname Sakihata means "blossom" (咲) (saki) and "field" (畑) (hata).
- Rimi appears in 5pb.’s fighting game Phantom Breaker and its enhanced edition Phantom Breaker: Extra as a secret playable character. In order to unlock her, you have to get 15+ stars in battle situation mode using Gaito. The other secret playable character in this game from the Science Adventure Series is Kurisu Makise, and a fun challenge for Science Adventure fans is to get Rimi and Kurisu to fight in Phantom Breaker.
- She was also referenced in Steins;Gate 0 anime (episode 15) as a plushie.