Aisu Iko

Aisu Iko, a. k. a. Aizu Hyūga-no-Kami Iko, Aisu Hisatada was a Japanese martial artist and the founder of the Kage-ryū school of sword fighting. Aisu was originally a pirate based in Kumano, who raided Japanese and Chinese shipping and whose travels took him on occasion as far as the Chinese mainland.