When Nobunaga ODA started the attack on Mino Province, he became a vassal of Nobunaga as a member of Kuro horo shu (an elite bodyguard unit in black) and played an active role at various battles for Nobunaga's going to Kyoto and putting down Ikko Ikki (an uprising of Ikko sect followers).
織田信長が美濃国攻めを開始した頃、信長の家臣となり、黒母衣衆に名を連ね、信長の上洛における諸合戦や一向一揆討伐戦などにおいて活躍。