Cheng Lingsu is a character in "The Tale of the Flying Fox", she is the young disciple of the Poison Hand Medicine King, when Hu Fei came to find the Medicine King to save Miao Renfeng, he met Cheng Lingsu on the way.
When Hu Fei first saw Cheng Lingsu, he saw Cheng Lingsu working in the field, and his heart arose to help, so he went forward to help Cheng Lingsu to work, at first Cheng Lingsu was fierce and cold to Hu Fei, but after getting along with Hu Fei for a while, he began to have a good feeling for Hu Fei, and then went with Hu Fei to save the Miao fengmiao hero, and after saving the Miao feng, Cheng Lingsu followed Hu Fei to the rivers and lakes.
In the days when he was wandering around with Hu Fei, Cheng Lingsu's feelings for Hu Fei were increasing day by day, but hu Fei's heart was all about Yuan Ziyi, and he just regarded Cheng Lingsu as his own good sister.
Looking at it from the beginning, Cheng Lingsu has always been the simple girl in Hu Fei's heart who needs protection, Hu Fei has sacrificed himself several times when Cheng Lingsu's life is in danger, and in Hu Fei's protection again and again, Cheng Lingsu is also slowly willing to pay for Hu Fei's life. But helplessly, Hu Fei already had a heart to belong to, and his heart was devoted to Yuan Ziyi.
At the beginning, when Hu Fei and Cheng Lingsu were on the road, Cheng Lingsu saw that Hu Fei's thoughts seemed to be floating in the other place, so he asked Hu Fei if he was thinking about Yuan Ziyi, and Hu Fei was immediately embarrassed, and hid from Cheng Lingsu that he was not thinking of Yuan Girl, and when he heard this, Cheng Lingsu said to Hu Fei quietly that he was just a country girl, not as good as Yuan Girl, and when he was finished, he rode his horse and bowed his head. Hu Fei felt that his heart was too unwilling to go, so he said to Cheng Lingsu that there was an important thing to ask for, hoping that Cheng Lingsu could agree, hearing Hu Fei's words so sincerely, Cheng Lingsu was very happy in his heart, but when he heard that Hu Fei wanted to worship himself as a brother and sister, his face suddenly became miserable, and his expression was unnatural, so he quickly got off his horse and worshiped Hu Fei, and after the worship, he ignored Hu Fei and rode his horse alone in front of Hu Fei and left Hu Fei behind. When you see here, it is inevitable that people's noses will be sour, and the young and beautiful girl will fall in love with the teenager who has someone else in her heart, which is undoubtedly a sad thing.
In a confrontation with the disciple of the Poison Hand Medicine King, Hu Fei was hit by a fatal poison in order to save Cheng Lingsu. Before that, this poison was originally incurable, but Cheng Lingsu did not hesitate to sacrifice his precious life to help Hu Fei suck out the poisonous blood, and after the poison of Hu Fei's body was removed, his life was not a big problem, but Cheng Lingsu was poisoned and had no medicine to save because he saved Hu Fei, and finally died in tears next to Hu Fei.