At the end of the Eastern Han Dynasty, Cao Cao had a headache and sent Huben guards to urgently summon Hua Tuo. Feng Xi foresaw the fatal disaster and transformed herself into a rescuer, helping Hua Tuo escape death. After that, Hua Tuo hid in the countryside, met Shaoyi, the peony fairy, who had admired him for many years, and ended their marriage. However, immortals and mortals have different paths, and it is difficult to continue to have descendants. With Feng Xi's guidance, the two went to Kunlun, went through many hardships and dangers to obtain Xuezhi, broke the shackles of heaven and earth, and finally gave birth to their beloved son. Hua Tuo practiced medicine for half his life, and integrated the secrets and practical essence of the Feng people into the "Qing Sang Jing", which became an eternal medical classic.
His son Hua Fei was of immortal blood, and a strange phenomenon occurred in the sky when he was born. He is gifted with extraordinary talents, received true inheritance from his parents, taught by Feng Xi, and protected by dragons and dragons. Not only does he have superb medical skills, but he is also proficient in martial arts and carries forward the profound meaning of the "Qing Sang Sutra". Fahrenheit's medical philosophy has been passed down from generation to generation and has had a profound influence to this day, spanning time and space, benefiting people from all over the world.