 However, this precipated an "O-Ie Sōdō" known as the “Kaga Sōdō”.Shigehiro's wet nurse and the mother of Maeda Munetoki, Jōshuin, was poisoned and killed in an attempt of Shigehiro's life by one of Maeda Yoshinori's other concubines, Shinyō-in.This Shinyo-in was a supporter of Ōtsuki Denzō and incriminating letters were found in her possession.