What is "motsugai"

Motsugai Fusen (aka Takeda Butsugai, Takeda Motsuge, Takeda Motsugai, Takeda Genkotsu Motsugi, Motsuge Zenji) (1795–1867) was a Japanese Zen priest at Saihoji Temple, a painter and a martial artist.

Known as the "Fist Bonze" or Genkotsu Osho, Motsugai was noted for his great physical strength. He was able to punch through wooden boards and lift heavy rocks, and once fought off the swordsman Isami Kondo using only a set of wooden begging bowls. He is credited as the founder of the Fusen style of jujutsu.