"Avenge me!" These were his last words, and then darkness fell. He is the sixth prince of Tianjing Kingdom - Ouyang Ci, and he is the world's number one killer in the 22nd century - Leng Wuqing. Ouyang Ci was gifted and intelligent. When he was six years old, his mother, Concubine De, wanted to keep the child away from the chaos of the palace. She handed him over to her friends Huiyuan and Qinghui, two masters, and he began his training in Wudang and Yutianmen. When he was ten years old, bad news came from the palace that his mother had passed away. Ouyang Ci hurriedly bid farewell to his two masters and went back to the palace. His mother's suicide note repeatedly emphasized that she died of illness, but Ouyang Ci discovered through clues that things were not simple. At this time, the second prince of Tianjing Kingdom, the prince, Ouyang Hong, found him and asked him to help him. He was willing to help him find his enemy. He agreed and helped him ascend to the throne, but he was assassinated. When he was dying, he understood the whole story. He looked up to the sky and smiled, vowing that if God gave him another life, he would make these people suffer a bad death.
Cold and ruthless, he was betrayed by his best friend during a mission and killed himself together with the enemy. Before he died, he looked up to the sky and smiled. If he were reincarnated as a human being, these people would not be able to live or die. When he woke up, he was already in ancient times, merged with Ouyang Ci, and embarked on the road of revenge for his body.