In the TV series The Messenger, Zhang Xiaolong was Yu Minghui's adjutant who belonged to the Kuomintang when he was undercover in the enemy camp. The Secret Envoy is a spy war TV series set in the second civil war between the Kuomintang and the Communist Party. The TV series tells the story that Yu Minghui, a member of * * * *, took the place of his twin brother and Kuomintang military expert Yu after his accidental death, secretly lurked inside the Kuomintang river defense commander and stole the Kuomintang's full set of river defense plans.