However, when the news came to Kyushu on June 27, 1333 that Rokuhara Tandai (an administrative and judicial agency in Rokuhara, Kyoto) was defeated by Takauji ASHIKAGA, Sadatsune and Sadamune, who had been obedient, as well as Sadahisa SHIMAZU, rebelled and made an assault.
ところが正慶2年（1333年）5月7日に京都で六波羅探題が足利尊氏らによって陥落させられた情報が九州に届くと、それまで従順であった貞経や貞宗、さらには島津貞久らが離反して攻めて来る。