Three Kingdoms: a Poisonous Plan at the Beginning to Serve Cao Cao

Qinchuan traveled to Cao Ying before the Chibi War in the 13th year of Jian'an and became a low-level clerk. Faced with the critical situation of a sudden plague in Cao Cao's army and the morale of the army was shaken, he proposed the poisonous plan of "driving the plague to Jiangdong", using 500 sick soldiers as a medium to spread the disease to the Sun and Liu coalition forces, helping Cao Cao break the deadlock in Chibi.