 He passed on leadership of the school to other Buddhist monks of his order, including Hōzōin Inshun (1589-1648), Hōzōin Insei (1624-1689), Hōzōin Infū (1682-1731), and Hōzōin Inken (1746-1808).The school was revived and updated in the nineteenth century by Takeda Sōkaku (1858-1943), who introduced the use of bamboo practice swords ("shinai").In'ei and his school feature in the manga series "Vagabond", in which he has retired as master of "Hōzōin-ryū", only to train Miyamoto Musashi to defeat his successor.