Kage-ryū (Aizu)
Legacy. Aizu had two primary students, his son Aizu Koshichiro, and Kamiizumi Hidetsugu --also known as Kamiizumi Ise-no-Kami Nobutsuna -- a famous swordsman and founder of , which would be renamed Yagyū Shinkage-ryū by Nobutsuna's equally famous student Yagyū Sekishūsai Muneyoshi. Modern practice. Today, the Kage-ryū of Aizu Hyūga-no-Kami Iko exists only through its influence of later schools of swordsmanship, such as Yagyū Shinkage-ryū and Kashima Shinden Jikishinkage-ryū, and the many schools that they in turn influenced.