Kazuhiro Fujita began his career as a manga artist, thanks to a short story that own a prize. He works almost exclusively for the magazine Shônen Sunday of Shogakukan. His first long series was 'Ushio to Tora', which counts over 30 issues and has been adapted into a video game. His second big series is 'Karakuri Circus', which he started in 1997. In addition, he created the one-shots 'Yoru No Uta' (1995) and 'Ushio to Tora Gaiden' (1997). On 6 February 2013 he was one of several mangaka to make a graphic contribution to the charity special, 'Heroes Come Back' in the magazine Weekly Shonen Tuesday to raise money for the victims of the 2011 earthquake and tsunami, alongside Takashi Shiina, .Rumiko Takahashi, Kazuhiko Shimamoto, Fujihiko Hosono, Masami Yuuki and Hiromu Arakawa.