Tsuburaya Mitsuhiko was a student in Teitan Elementary when Shinichi was enlisted into his class after he had been shrunk by the drug APTX 4869. Shortly afterwards, his classmates Ayumi and Genta had the idea of investigating an apparently haunted mansion, and they persuaded Conan to come along. When Mitsuhiko espressed his scepticism about supernatural hauntings, Genta forcefully 'persuaded' him to tag along as well. As it turned out, the haunting served as a cover-up for an old homicide case. Following its resolution, the foursome decided to stay together and form the nucleus of what would become the Detective Boys. It is later revealed that Mitsuhiko's parents are both teachers, and he has an older sister, Tsuburaya Asami, about ten years his senior. Mitsuhiko enjoys reading science books and takes a scientific approach to problem-solving. He is a smart and well-read first-grader who believes that technology can solve most problems. Due to his strict and formal upbringing, he tends to be very formal towards his elders, addressing them with the formal suffix "-san" without regard to the intimacy of their relationship. Mitsuhiko has a dislike for carrots, and will always eat them last (if ever) if he can help it.
One of the sages in Elder Council. First appearance in episode 13.
Age: 20 (debut), 28 (end) Birthday: March 11, 1990 Pen name: Kou Aoki (蒼樹 紅 Aoki Kou) Aoki is a manga creator who used to work for a shoujo magazine called Margaret Magazine, until she was advised to switch over to a shounen magazine. Over at Shounen Jump, she worked with Nakai on her series Hideout Door. She usually bears a tough exterior and can come off as having a cold personality. Aoki attended To-Oh University with Iwase, the same fictional and prestigious university that L and Light from Death Note attend together. She currently works alone, both writing and drawing her stories without the help of a more talented artist, aside from her assistants. Hiramaru courts Aoki for a while, but the relationship becomes canon when he finally proposes to Aoki while on an amusement park's ferris wheel and she accepts.
Age: 15 (debut), 25 (end) Birthday: May 8, 1993 Birthplace: Saitama-ken, Japan Iwase is an intelligent girl who was a classmate of Mashiro and Takagi during Junior High. Iwase is an academic achiever in school. She's difficult to get along with due to her strict and high-standard nature. She leads a rather lonely life however, this doesn't bother her as she's always focused on her studies. In her world, she only respects people that rivals her ranking in school. When she appeares with Miyoshi Kaya at Takagi's house after his suspension, she reveals that she liked him. She took notice of Takagi during their middle school days as the only person that managed to out-rank and out-score her in academic performance. For her, giving out a simple hand-shake was a huge deal, as it meant a physical sign of respect and even going out together. However, she was so subtle to Takagi that she entirely missed the chance to properly convey her feelings. Her occasional mouth of challenge to Takagi only suggested to him to maintain this one-sided rivalry, but in reality, she was encouraging him in her subtle romantic intentions. Things started to change when she realized Takagi dropped in his school ranking and even stopped caring about his scores. When he was pressed to choose between her and Miyoshi, Takagi made it clear he's focused on being a mangaka more than romance. When Iwase tells Takagi to not pursue his ambitions and instead continue their academic rivalry she, to her surprise, was rejected by him. She reappears in chapter 60 as a student at To-oh University and novel writer. Iwase worked in publishing to prove her line of literary works are superior to Takagi, but unfortunately, it was another unofficial rivalry that he didn't realize until she pointed it out later. Iwase however, still she sees Takagi as a rival and decides to write stories for Shonen Jump to see if she can beat him at his own game. Her editor is Hattori, who worked with Takagi and Mashiro. She later becomes the writer for Eiji's new manga +Natural. She also teams up with Eiji for a collaboration in Crow for a few chapters. After Hattori returns as Takagi and Mashiro's editor, her new editor is Miura. Her writing and plot are praised for being very well made.
Age: 23 (debut), 31 (end) Birthday: May 14, 1987 Miura is the second editor for Ashirogi Muto. He is very enthusiastic and excited, and sometimes not a hard enough editor for the boys. After Detective Trap was canceled, he pushed Mashiro and Takagi to work on a gag manga.
Age: 45 (debut), 55 (end) Birthday: February 22, 1963 Editor-in-Chief of Weekly Jump. He tends to behave indifferently or even coldly but it's all for Jump's authors and editors to regain their spirits. He has a good eye for manga and believes it's most important for a manga to be interesting. He's not afraid to make a gamble in order to make the magazine better, but will not put authors' lives at risk. He knew Saikou's uncle, Kawaguchi Taro, since he was the Assistant Editor-in-Chief at the time Kawaguchi Taro had to quit.
Jun is Azusa's and Ui's classmate who often hangs out with the latter. Ui tries to get her to join the light music club but ultimately fails due to a strange visit to the club room. However, she starts to regret it when she hears about all the activities the club does. She has a pet cat. She plays the bass. (Source: Wikipedia)