Kashima Shinden Jikishinkage-ryū (鹿島神傳直心影流), often referred to simply as Jikishinkage-ryū or Kashima Shinden, is a
traditional school (koryū) of the
Japanese martial art of swordsmanship (kenjutsu). The school was founded in the mid-16th century, based upon older styles of swordsmanship, and is one of the few ancient Japanese
martial arts schools still existing today. He perfected, and taught his style around Japan. There are evidence from 1525, that another samurai, Kamiizumi Ise-no-Kami Nobutsuna (1508
–1548) is teaching his own style, a form of Kage-ryū kenjutsu. He called it Shinkage-ryū (the school of the new shadow).