Hana no Keiji (花の慶次 -雲のかなたに-, Hana no Keiji -Kumo no Kanata ni-; lit "The Flowery Keiji: At the Other Side of the Clouds") is a period manga authored by Tetsuo Hara, which was serialized in the Weekly Shōnen Jump from 1990 to 1993. It is an adaptation of the novel Ichi-Mu-An Fūryūki (一夢庵風流記) by Keiichiro Ryu and serves as a fictionalized account of the life of Keiji Maeda. Hana no Keiji is one of Weekly Shōnen Jump's best-selling manga series of all time, with over 17 million copies sold.