On August 24, he filed a lawsuit against SM Entertainment to terminate his contract, the principal cause being due to health reason, mainly the aggravation of the ankle injury sustained at the Idol Star Athletics Championships.
On August 24,2015, Zitao filed a lawsuit against SM Entertainment to terminate his contract. The principal cause of Zitao's exit stemmed from health concerns, mainly the aggravation of an ankle injury sustained at the Idol Star Athletics Championships.