原哲夫
' is a Japanese period manga series, based on the novel "Ichi-Mu-An Fūryūki" by Keiichiro Ryu and illustrated by Tetsuo Hara. It was serialized in Shueisha's "Weekly Shōnen Jump" from March 1990 to August 1993. The story serves as a fictionalized account of the life of Keiji Maeda. "Hana no Keiji" is one of "Weekly Shōnen Jumps best-selling manga series of all time, with over 17 million copies in circulation. An English adaptation was published in "Raijin Comics" under the shortened title Keiji".