Iba Hideaki (伊庭秀明, c. 1648 – 1717) was a famed swordsman during the Edo period (17th century) of Japan.
Hideaki had then followed in a certain duel with an unknown swordsman skilled within the Enmei-ryū in the Kyūshū region.
What Hideaki had truly meant by having such a name was the fact that within the time of combat, one will be amongst two states of mind—that of attacking the opponent or fleeing out of fear.
Through this, Hideaki employed the principle that one should always attempt to deepen their level of technical accomplishment in order to create within themselves an unshakable form.
[2] In the manga Mugen no Juunin, a school inspired and named after the Shingyōtō-ryū is featured, which tried to preserve the spirit of martial arts as a mean to prepare oneself for war.