After Nobunaga ODA entered Kyoto in 1568, Yukan was in charge of government affairs in Keiki (the area around Kyoto), appointed as Yuhitsu (amanuensis) of the Oda family.
永禄11年（1568年）の織田信長入京後には京畿の政務にあたり、織田家の右筆に任じられている。