His unrestrained corruption and cruelty led to a coup by general Choe Chung-heon, who assassinated Yi Ui-min and took supreme power in 1197.
Jeho nespútaná korupcia a krutovláda viedli k prevratu generála Čchö Čchung-hona, ktorý I Ui-mina zavraždil a v roku 1197 prevzal najvyššiu moc.