Li Changfeng, a seven-year-old boy, was originally a carefree boy in Hexi Village. A pear wood sword and a side of Yanhuo Village were his entire world. However, in a bloody night, the enemy destroyed the village and his parents died tragically. He was left holding an unknown sword manual "Sword Sword" and fled in a hurry in the sea of fire and blood.
A homeless orphan boy fainted from hunger in front of a hut in the mountains. Fortunately, he was taken in by a white-haired old man named Xu. He didn't know that this seemingly ordinary doctor actually had a life-and-death connection with the Sword Book - the owner of the sword book, Xu Qing, was Mr. Xu's biological brother who had been separated for twenty years. In order to cut off his love, he traveled to the four great places of East Extreme Wilderness, West Brahma Realm, Southern Abyss, and Beichao Island. Since then, there has been no news.
During the three years deep in the mountains, Changfeng used vegetation as his friends and the fragrance of medicine as his companion. Under the guidance of Mr. Xu, he practiced medicine and exercise, and pondered the sword meaning of "Jian Shang" day and night. He understood that medical skills are benevolent, swordsmanship is protective, hatred can be remembered, but the heart cannot be eroded.
When the boy's childishness fades away, thick calluses form on his palms, and the true meaning of the sword manual is understood, the road down the mountain is already laid out. He wanted to find the man in black with the severed finger and the scoundrel villain to repay the blood debt of his parents; he also wanted to go through the four desperate places to find Xu Qing's traces and put an end to Xu's lifelong worries; he also wanted to protect his life with his sword, save his life with medicine, and walk a completely different path of swordsmanship from Xu Qing's, until he met her.
