Ieyasu Tokugawa was a nobleman and also Senhime’s grandfather. He was famous for being modest, reserved, honest and conscientious, but he fell under Sōhaku’s jutsu, where he became mad, locking himself in his room, doing horrendous acts to young women. This jutsu was finally lifted when Sōhaku was stabbed by Aya. Later on, he was shown as one of military leaders laying siege on Osaka Castle. When the war ended, he was shown living happily with Tokuan, as his company, until he was attacked and killed by Tetsuhito.