Rubuta ci gaba don wannan sakin layi - Tare da rushewar Yuan, wanda ya rinjayi tsibirin Koriya tun lokacin da Mongol ya mamaye Koriya
na 1238, Sarki Gongmin ya fara kokarin gyara gwamnatin Goryeo. Ayyukansa na farko shi ne cire duk masu goyon bayan Mongol da kuma jami'an soja daga matsayinsu. Waɗannan mutanen da aka tsige sun kafa wata ƙungiya mai rarrabuwa wacce ta shirya juyin mulki mara nasara a kan sarki. Babban jami'in Jo Il-shin har ma ya yi ƙoƙarin karɓar gwamnati, amma janar Choi Young ya dakatar da wannan tawaye.