Yujiro Hattori

Yujiro is one of the youngest editors at Shounen 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 Mangaka. Due to his success, he later becomes a team leader. While initially arrogant towards Hattori Akira, Yujiro eventually warms up to him to the point where they meet regularly and exchange ideas as editors.

(Source: Bakuman Wikia)