Kenkojuku the jurisdiction of the Kenkojuku Karate Association, which was founded by Tomosaburo Okano, a student of Gichin Funakoshi, and a lead of the school of Shotokan karate. The association's motto is "Inner Strength with Outward Humility." Since Okano's death, the Kenkojuku Budokan is run by his son Tomokatsu Okano, from the hombu dojo located in Tokyo. Okano was also a noted expert in the field of flower arrangement or Ikebana specifically roses which became a passion of his, in later years. The founder and chief instructor of the Kenkojuku Shotokan Federation was Tomosaburo Okano. Born in 1922, he was a
Ryu Hayabusa a "Bio-Noid", created by Irene's superior and corrupt CIA director, Foster. After Ryu defeats the double, Foster is killed by H.P. Clancy, who had instructed Ryu to locate a ruin called the "Castle Rock Fortress", which was the base of Foster's Bio-Noid experimentation and has also secretly housed an interdimensional warship that Clancy intends to use for global dominance. Ryu kills Clancy in battle and the ship is destroyed as Ryu escapes with Irene, bringing the first-generation "Ninja Gaiden" storyline to a close. The 1992 Sega Master System version of "Ninja Gaiden" scraps the entire narrative of the original series