 He later returns in Basilisk's sequel series, The Yagyu Ninja Scrolls, where he takes on a more saintly role.He is the twin brother of Ashina Dohaku, who serves as the main villain in the second half of The Yagyu Ninja Scrolls.A Kenjutsu instructor of the Yagyū Shinkage-ryū school, of whom the Tokugawa Shogunate was a loyal patron.