by: Lily Franky (film), Mitsuru Karahashi (play) is the editor-in-chief of Weekly Shōnen Jump. Earlier in his career he had worked with Moritaka's uncle Nobuhiro as his editor. He eventually had to break the news that Nobuhiro would have to leave Shōnen Jump, leading to his unemployment and eventual death. Despite his stoic and stern demeanor, he is very passionate about what he does. Sasaki also likes to delegate responsibilities when able in order to give his subordinates experience. When dealing with the manga artists, he does not hesitate to put them in their place and will resort to trickery, much like Hattori, to make them see what will happen. Sasaki later becomes the editor in chief of the fictional new monthly magazine, Hisshou Jump. The character is based on the real person of the same name who was the editor-in-chief of Weekly Shōnen Jump from 2008 to 2011, coinciding with the majority of Bakumans serialization. Yoshihisa Heishi is the Deputy Chief Editor of Weekly Shōnen Jump. He has a serious personality and usually follows Sasaki's orders but does appear to have his own reservations sometimes. He is later promoted to Editor-in-Chief following Sasaki's move to Hisshou Jump. After his promotion, his personality alters somewhat; he becomes more open about his opinions, often dramatically leaving a room after giving one. The character is based on the real person of the same name who took over as editor-in-chief of Weekly Shōnen Jump from Sasaki in 2011, and held the position until mid-2017. Soichi Aida is one of the editor team-leaders at Shōnen Jump, with both Hattori and Miura in his team. He is also the editor of Aoki-Nakai's manga Hideout Door. He gives helpful advice to Miura on occasion but is troubled by the stirs Ashirogi is causing. He later becomes deputy chief editor. Yujiro Hattori is one of the youngest editors at Shōnen Jump and editor of Eiji Nizuma's successful manga Crow as well as Fukuda's Kiyoshi Knight and later Road Racer Giri. Yujiro has difficulty keeping Eiji in line, but prides himself on finding such a talented manga artist. Because he shares the same last name as Akira, he is referred to by his first name while Akira as referred to as "Hattori". He finds it difficult to get along with Nizuma and Fukuda at first due to their eccentric or brash personalities, but soon becomes accustomed to them.