His first series was about young men training to be come elite gangsters in a Yakuza school entitled "Shiritsu Kiwamemichi Kōkō" (Ultimate Path Private High School). It was published in Weekly Shonen Jump in 1979. But due to a scandal linking to the series it was cancelled indefinitely.
He worked in Weekly Shonen Jump consistently from the late 70's to the mid-90's and though Sakigake! Otokojuku was by far his longest and most successful series for the magazine, he had seven serials in the magazine (though a number of them were collected in only a few volumes, very few mangaka had this many series in the magazine's history).
In the mid-90's, when he left Weekly Shonen Jump, his focus shifted to Shueisha's seinen manga market, creating one of the longest-running series ever published in Weekly Playboy and several serials for the Super Jump magazine (the two longest of which were Otokojuku spin-off's).
In 2011, he left Shueisha for Nihon Bungeisha where he began serializing works in their seinen manga magazine, Weekly Manga Goraku. So far, these series have been spin-off's of his earlier works, including a revival of his first serial which also saw it fully collected for the first time as well as a number of new Otokojuku spin-off's. Though he writes and draws spin-off's in the primary Goraku magazine, a number of spin-off's by a variety of other artists are also published by Nihon Bungeisha (most of them are serialized digitally).