It is said that during the war of Zenshu UESUGI, he was sent as a envoy to Mochiuji ASHIKAGA so as to put Mochiuji off his guard and told him about his father's illness (feigned illness).
上杉禅秀の乱の際、足利持氏を油断させるため、持氏への使者として派遣され、父の病気（仮病）を伝えたといわれる。