Lai Ying'er was a singing and dancing prostitute in Luoyang, the imperial capital of the Eastern Han Dynasty. In the troubled times, he traveled around Cao Cao and performed songs and dances for Cao Cao, who was deeply loved by Cao Cao. But Cao Cao was busy with military plans and accompanied by many beautiful women, so he was somewhat snubbed by Lai Ying'er.

And Cao Cao had a guard named Wang Tu, who was smart and handsome, and Laiying'er secretly fell in love with him.

Once Cao Cao sent him to lead his men deep into the enemy's interior to investigate. Lai Ying'er was reluctant to give up her lover and hugged him all night, making him miss the late-night departure time. Cao Cao was furious and wanted to deal with Wang Tu's military law. Lai Ying'er knelt in front of Cao Cao and said, "May King Tu die..." and expressed his personal feelings.

Cao Cao was very touched and said that if Lai Ying'er could train a singing and dancing troupe that could replace her within a month, she would be allowed to die for her lover.

Lai Ying'er actually trained a singing and dancing troupe within a month, especially Pan Qiao'er, who was outstanding. After the training, Ying'er came to ask for death, and Cao Cao was reluctant and asked her, "Do you want to see Wang Tu?" Unexpectedly, Lai Ying'er said: "If I die for him, it means that my relationship with him is over and I don't want to see him." Cao Cao had no choice but to say, "Wait until I let Wang Tu go."

After Laiying'er left, Cao Cao passed on Wang Tu, but Wang Tu told Cao Cao that he was just acting on Laiying'er and had no feelings, so he was so angry that Cao Cao drove him back to his hometown. Cao Cao told Laiying'er that she had been meritorious in training her singing and dancing troupe and spared her the death penalty.

Ying'er refused to accept this kind of favor, turned around and left calmly, facing her back, Cao Cao shed tears for a woman for the only time.