Sanada Jūyūshi

The Sanada Ten Braves (真田十勇士, Sanada Jūyūshi; also known as the Ten Heroes of Sanada) are a fictional group of ninja that assisted the warlord Sanada Yukimura during the Warring States era of Japan; that is, the late Sengoku period and its immediate aftermath, also known as the Azuchi–Momoyama and the early Edo periods. The Sanada story first became well known through Sanada Sandaiki, a novel published in the late Edo period. Later Tatsukawa Bunko published two novels in the Taishō period: Sarutobi Sasuke and The Sanada Ten Braves.