Age: 19 Orihara is a young assistant who worked with Ashirogi Muto on "Run, Daihatsu Tanto!". He is a very energetic and cheerful character that tends to get loud due to his excitement, may it be about work or something else. When Takagi and Moritaka decide to quit the series, he offers to keep working for them without payment, because he still wants to learn from them. He works as an assistant again, when they start publishing "Perfect Crime Party".
Age: 18 (debut) Shiratori Shun is an assistant for Ashirogi Muto's Perfect Crime Party and the mangaka of Rabuta & Peace. Shiratori comes from a wealthy family and has a sister. He applied to be Eiji Nizuma's assistant, but the editors had already filled that position, so he was instead hired as Ashirogi Muto's assistant. He was rejected from art school and didn't think he would make a good mangaka, but when he saw an advertisement to be an assistant he took the chance, not wanting to mooch off his parents anymore. Shiratori is a happy boy with simple emotions who easily blushes. He speaks what he feels. He loves art and feels that it should be seen and enjoyed by thousands of people. That is why he draws manga as opposed to his grandfather, who purchased art and kept it in his house where people rarely saw it. (Source: Bakuman Wikia)
First appearance: episode 1 (2nd Season)
Shukaku is the demon that is in Gaara giving him most of his power and his insanity. Shukaku is able to fire off sand chunks that look like and act like kunai. In the English dub, Shukaku is made sounding like an insane cowboy. Shukaku is the Ichibi, which is the One-Tail Jinchuriki. Shukaku is very powerful as Gaara can still not fully control him.
Tsunami is the daughter of Tazuna and the mother of Inari. Her husband died shortly after Inari's birth, and when Kaiza entered her life as a father figure for Inari, she couldn't help but invite him into her home. Like everyone else in the city, Kaiza's death broke her spirit. In the years following, she tried to protect Inari from the painful memories of the loss of his friend and mentor. Land of Waves Arc Tsunami is a woman of strong will; when she is taken hostage by Gat�'s men to threaten Inari, she threatens to commit suicide so that Inari doesn't need to worry about her. Before she is placed in a position that would force her to go through with her threat, Naruto Uzumaki saves her and Inari.
Giichi worked for Tazuna as a construction worker on his bridge. Though Giichi worked longer than many other crew members, he too quit after fearing for his safety.
Jantou helped operate one of the most expensive gambling parlors in the Fire Country. When Tsunade came to his hall, he and his partner Souzu used her "Legendary" sucker status to make a lot of money off her. Later, when Jiraiya asked around to see if anyone had seen her, he and Souzu were able to provide Jiraiya information as to her location.