Keiji Okayasu is a games director. Okayasu has been working with Deep Silver, SEGA, Ys Net and Vivarium. Okayasu's first published game was Shenmue released in 1999. After that, Keiji Okayasu took part as the director of Odama. Later, Okayasu also was part of the team who developed Dynasty Warriors DS: Fighter's Battle published by Koei for Nintendo DS. Most recently, Keiji Okayasu was involved in the development of Shenmue III.