 Takemori falsely claimed to Yoshioki that Naitō Hironori, "shugodai" of Nagato Province, sought to support his younger brother.Yoshioki then directed his men toward Hōfu, proceeding to execute Hironori and his son, Hirokazu.Later, upon learning of the injustice committed against Hironori and Hirokazu, Yoshioki executed Takemori and received Hironori's daughter as his formal wife.