In 1333 the Prince was asked by Morinobu OTA to fight, he joined together with Tadaaki CHIKUSA, to attack Rokuhara Tandai; the Kamakura shogunate's agents stationed in Rokuhara, Kyoto, which were organized by Takauji ASHIKAGA.
元弘3年（1333年）に太田守延に奉じられ、千種忠顕らとともに足利尊氏の六波羅探題攻撃に参加する。