Where did Cao Chun's reincarnation Dan come from?

Baoyudian According to the official announcement of the Three Kingdoms Killing, the tenth anniversary of Cao Chun's reincarnation can be obtained by lottery, which can be carried out in Baoyudian. "Three Kingdoms Kill" is a popular desktop game designed by the students majoring in games in Animation College of Communication University of China in 2004 and released by Beijing Tourism-Private One-Day Tour Card Board Game Culture Development Co., Ltd.