Conspiring with negotiators on the Ming side including Wei Jin SHEN, he tried to conclude peace with the Ming dynasty by conveying false information that Hideyoshi would surrender to Ming and the opposite information to Hideyoshi.
明側の講和担当者・沈惟敬らと共謀し、秀吉には明が降伏すると偽り、明には秀吉が降伏すると偽って講和を結ぼうとする。