He originally began as an assistant to hentai manga artist Dirty Matsumoto, and then as an assistant to manga artist Izumi Matsumoto in the production of Kimagure Orange Road,[1] creating his own stories in his spare time.
He debuted in Weekly Shonen Jump with two short stories, Binetsu Rouge (in 1987) and Virgin Tyrant (in 1988).
They regularly publish a best-selling dōjinshi, Wonderful Megadeth, as well as various dōjinshi featuring popular fighting games such as Dead or Alive, Virtua Fighter and various Capcom games.
In 2012, he designed the armor for two jobs (Geomancer and Rune Fencer) in the 2013 Final Fantasy XI expansion, Seekers of Adoulin.
[2] Hagiwara is a high school drop-out, however he is a graduate from Tokyo Designer Gakuin College.