To ensure Shidebala's succession, Kuśala was rewarded with the title of king of Chou and relegated to Yunnan in 1316; but fled to Esen Bukha-ruled Chagatai Khanate in Central Asia, as a pro-Khayishan official advised, after a failed revolt in Shaanxi. When the Chagatayid Khan Esen bukha heard that Kuśala was living near his realm, he came to greet him. After that, Kusala was backed by the Chagatayid princes. While in exile in Central Asia, he married Mailaiti, a daughter of Temuder of the Qarluq.