Zhang Yi, the prime minister of the Qin Dynasty, came to the State of Chu, deceived Chu Huaiwang with rhetoric, persuaded him to sever diplomatic relations with the State of Qi, and promised that the State of Qin would cede 600 miles of land to the State of Chu (that is, the fief of Qin Shangyang, located in the middle and lower reaches of the Danjiang River today, from the southeast of Shangzhou City in Shaanxi to the east of Xixia County in Nanyang City, Henan Province). Chu Huaiwang is very happy to discuss this matter with his ministers. Keke said: "The reason why Qin attaches importance to Chu is because Qi and Chu have made good friends. If Chu breaks diplomatic relations with Qi, Qin will inevitably bully Chu. Besides, how could Qin give six hundred miles of land to Chu in vain? This is completely a trick used by Zhang Yi to deceive people. Your majesty must not believe it. " The doctor Qu Ping (that is, Qu Yuan) also said, "What Chen Yi said is true. Zhang Yi is a fickle villain, and his words are not credible. " Chu Huaiwang's minion, Jin Shang, accepted the bribe from Qin. He strongly opposed their opinions and encouraged Chu Huaiwang to pay Qin. Both sides hold their own opinions and argue endlessly. Chu Huaiwang is a brainless fool. He waved and said loudly, "Everybody shut up. I believe in Zhang Yi, and this matter is settled. " So he gave Zhang Yi 2200 gold and 40 good horses, and asked the doctor to take Zhang Yi to Qin State and accept the land promised by Zhang Yi.