Just like his father, he fought with the Kanrei (shogunal deputy), Katsumoto HOSOKAWA, over the Japan-Ming trade (the so-called tally trade) and supported the Kono clan of Iyo Province, which was the enemy of the Hosokawa clan.
父に引き続き、日明貿易（勘合貿易）をめぐり管領細川勝元と争い、細川氏と敵対する伊予の河野氏を支援する。