This book is an expansion of the Korean drama "Iljimae". It is based on Iljimae in the Chinese story and tells the story of Lee Jun-ki's version of Iljimae's revenge.
Li Qian'er is the son of the anti-government hero Li Yuanhu. When he was nine years old, he witnessed his father being killed under a plum tree, and his mother and sister became prisoners. Qian'er escaped because of Tie Shi's rescue. Later, because he could not bear the blow and lost his memory, Tie Shi took him as his adopted son and named him Long Er. Long Er gradually grew up and turned into a little gangster. By chance, Long Er recovered his memory and became suspicious of his father's death. If he had no clue, the only clue was the pattern on the sword that stabbed his father to death. In order to find the sword, Long Er turned into a thief and became a famous Yizhimei in the world. And the love, hate, love and enmity between him and Shi Hou, Eun Cai and Feng Shun will also be staged here. (This introduction is partially based on Baidu Encyclopedia)