Age: 26 (debut), 34 (end) Birthday: June 18, 1984 Birthplace: Kanagawa-ken, Japan Hiramaru was a salary man that hated working. On hearing Takagi and Mashiro talking about drawing manga on the subway and finding an abandoned copy of Jack, he quit his job to be a mangaka because he thought it would be less work for him. He is a different kind of genius compared to Eiji because he is talented even though he just started to write manga more in of a spur of the moment. After teaching himself to draw manga in a very short amount of time, his manga, Otters 11 is serialized. He is hailed as a genius by Koji Yoshida who pushed for his serialization saying that Hiramaru had no real motivation to continue as a mangaka and failure would just make him quit. Hiramaru is extremely lazy and immediately regrets getting serialized due to the amount of work to keep up a weekly series. He has said that he doesn't know why people have to work for a living and that he wants to sleep when he's tired and to eat when he's hungry. Due to his laziness, his editor, Koji Yoshida, often schemes to manipulate Hiramaru into working. Hiramura often tries to escape Yoshida to avoid working. His attempts to escape Yoshida is a long-running gag in the manga. He is also a chronic hypochondriac and often makes incredible claims of illness. However, he is always proven healthy by the doctors. It's mostly believed that his "illnesses" are not only a product of his own fears, but also serves as an excuse to avoid work. Hiramaru has a huge crush on Aoki Yuriko. Yoshida bribes him into doing work by giving him weekly facts about Aoki. Yoshida also often depicts dramatic scenarios of Aoki rejecting him due to his laziness or inability to produce names to energize him to work hard. Because he can't stand the idea of losing Aoki in his life, a combination of his own anxiety and Hiramaru's end-game scenarios, he works feverishly in hopes his work will earn Aoki's heart. Eventually, he gets engaged to her in Chapter 160.
Age: 15 (debut), 26 (end) Birthdate: November 3, 1992 Eiji Nizuma is a high school genius mangaka who has been drawing ever since he was young. Moritaka Mashiro and Akito Takagi consider him their rival. He was supposed to serialize a manga called Yellow Hit but he wanted to draw a different manga, Crow, which appeared in Akamaru Jump instead. His assisants were initially Nakai and Fukuda (Mashiro also worked for him temporarily before Detective Trap was serialized). His editor is Hattori Yujiro. He once demanded to be allowed to end one series he hated if he ever made it as the most popular author in Jump. Niizuma is slightly naive, but can also be serious and calculating when he wants to. Eiji tends to act conceited because he is hailed as a genius; however, after working on Crow for quite a long time, he grew more humble, even claiming to not be "good enough of a Mangaka to be judging other people's work" when asked by his editor to judge for the Golden Future Cup. (He judges anyway, but is not very helpful, only expressing his interest in Ashirogi and Ryu Shizuka). He tends to make noises and sound effects when drawing or writing his manga. Eiji is constantly chastised by his editor, and at first seems to be rather oblivious toward his rivals' feelings toward him, even expressing great excitement when he meets Ashirogi Muto and saying he is their fan. He is a great lover of manga and his opinion are valued by everyone at Jump, including his rivals. He refers to himself as an "Eternal Boy" and that is why he writes Shonen manga. He has only ever had a crush on one girl, back in elementary school, which paired with his naïveté most likely explains his lack of success in the Super Leaders' Love Fest.
Age: 24 (currently) Birthday: June 9, 1994 He is an assistant to Ashirogi Muto when they publish Perfect Crime Party. He is a year younger than Mashiro and Takagi. After he became a finalist in the Tezuka Award he decided to drop out of design school and concentrate on manga. Moriya seems polite but it is revealed in his thoughts he has a very negative view on others. He can be quite snippy at times. Moriya believes manga should be about the art and creativity, and you shouldn't worry about popularity because you won't get anywhere if you do. (Source: Bakuman Wikia)
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.