A classmate of Sakura's, and the Student Council Secretary. For no reason at all he would set up a table in the middle of a hallway and drink some tea. He seems to enjoy bondage, as he constantly carries a book around with the cover having the woman in a kinbaku. He is later to be revealed as a Code: Breaker as well, under the code-name 02 (and with this all the even Code: Breakers have been introduced: 2, 4, and 6). Like Rei he also uses the same Code of Hammurabi, but instead of Evil for Evil he replaces it with "and eternal shackles for the evil." He also doesn't seem to prefer killing his targets, stating that "life is precious." Heike's power is controlling light. His Lost form (the form each Code:Breaker takes when he/she temporarily loses his/her special power due to overuse) has not been revealed, as Heike always wears a full-body metal armor to cover himself when in his Lost form, but others describe it as "something incredible". In chapter 109, it's revealed that Heike is actually over 100 years old. He was born in the Meiji era and enlisted in the Imperial Army, all the while concealing the fact that he had a special power. At that time, the government was secretly carrying out a project to exploit the powers of power users, who were said to be of great aids to Japan in times of crisis. However, as Imperialism took over, the Imperial Army started a relentless purge of harmful and rebellious power users. It was at that time that Heike met the Code:Emperor, who were using his flames to protect fellow power users. Enchanted by the Emperor's strength, Heike joined him, and with 2 others (making them a group of four), founded Eden, an independent organization with focus on the research of special powers. Heike's shown to have a berserk side, which Yukihina describes as being akin to a mad dog, in contrary to his usual composure and just attitude.
A remnant of the strongest power user known to Eden, the "Code:Emperor's" soul which resides in Ogami's left arm (the arm of the Code:Emperor grafted into his body) and is the actual controller of his Azure Flame power. He's conceited and often looks down on the Code:Breakers, but can be easily moved to tears. After he finds out that Rui is his favorite singer "8 tears" he starts to have a crush on her. His power, beside controlling the blue flame, can be used to summon dead people's souls from hell. Later on, he's shown to take the form of a crowned young boy inside Ogami. According to him, this form is merely temporary, due to the lack of his full original strength. In the Meiji era, the Emperor, along with Heike, Sakurakouji Sakurako, and one other person, founded Eden.
The security guard of the basement in Shibuya mansion. She's a mechanical doll created by Shibuya with the power to "drain" power from power users, thus making her a perfect protector of the Pandora's box. She bars anyone from entering the basement, except Ogami, whom she seems to recognize. Inoichi used to be Sakura's caretaker when she was little and raised inside Eden's laboratory. She's programmed to protect Sakura, and tends to follow her everywhere. A mechanical doll that was created in order to protect Sakura. Her purpose of living is to protect Sakura. Sakura had a flashback in chapter 66, which revealed that she knew Inochi and was protected by her before she was adopted by the Sakurakouji family. Sakura also remembers that Inochi always stayed by her side when she slept and Sakura always sat on her lap when she was a young girl.
A dragon of heaven, Sorata is an upbeat, irreverent teenager possessing considerable occult abilities, raised by the Shingon Buddhist monks of K�yasan after being taken away from his mother at a young age. A gourmand, he was frequently in trouble at the shrine for stealing food between meals (insisting that he couldn't wait until dinner), and is also a competent cook. It was prophesied that he would protect Kamui with his life, but that he would die for a woman; the first time he meets Arashi, he decides she will be the one. An incessantly friendly young man, he wears down the resistance of both Kamui and Arashi and worms his way into their affections, despite their initial coldness and his own unrefined Kansai dialect. In addition to generating powerful electrical discharges, he is also capable of calling upon a goh�d�ji, a magical being similar to a shikigami manifesting as a massive, hideous ghostly creature. It is psychically linked to Sorata, allowing him to spy on others and act at a distance from himself, but he suffers any damage inflicted upon it. In Tsubasa Reservoir Chronicle In the Republic of Hanshin, he's a cheerful history teacher married to Arashi and is host to Syaoran's group when they first arrive. In the apocalyptic world Tokyo, he's one of the seven fighters of the Tower faction.
Mitsuki is friends with both Takayuki and Haruka, but secretly she has feelings for Takayuki. In high school she was a competitive swimmer, but shortly after Haruka's accident, she finds herself leaving swimming to tend to Takayuki. She throws herself at Takayuki when he fails to climb out of his depression, and reveals her feelings for him. Mitsuki is well-meaning, but suppresses her feelings, allowing them to bottle up and explode in dangerous ways. Mitsuki also believes that she is responsible for her friend's accident, as she was the main reason why Takayuki was late for his date with Haruka. (Source: Wikipedia)
Haruka's younger sister, She initially sees both Takayuki and Mitsuki as older siblings until she finds out they have been seeing each other behind Haruka's back. While Haruka is in the hospital, she visits every day since there is no one else that can keep her company, even if Haruka is in a coma. This shows just how much she loves her older sister. She, like Mitsuki, is a powerful swimmer in her own right, but feels as if she can never match Mitsuki. Her intense hatred towards Mitsuki after the accident can be attributed to the feeling of personal betrayal by someone she considered an idol for throwing away her (Mitsuki's) talent and dreams as well as Mitsuki's betrayal of her sister by her sexual relationship with Takayuki. She learns to move on in life and becomes a top swimmer in Japan. (Source: Wikipedia)
Very young student (10 years old in the beginning) in Nodame's school in Paris. His goal is to be a conductor. In OVA 2, he became 15 years old and is in love with Chiaki's cousin, Yuiko.