Meifu Shinkage ryu was founded in 1970s by Dr Someya Chikatoshi who came from a samurai family.He studied Tenshin Shodan Katori Shinto ryu under Sugino Yoshio and had to study the whole school and after years of training was allowed to study Shurikenjutsu. Someya Chikatoshi sensei became a master of Tenshin Shodan Katori Shinto ryu.
Someya Sensei was also a friend of Nawa Yumio, who was Soke Masaki Ryu. He was never a student of Nawa Sensei but because they had a great friendship Someya Sensei watched his Kusari Fundo skills and gained valuable insight. Which gave him the inspiration to later created Kusari Fundo jutsu techniques for his own school.In June 1999 Someya Sensei died and so the school moved to Otsuka Yasuyuki, who studied under his leadership since 1985.