On a rainy night in the south of the Yangtze River, the temple was ruined and bloody. The young Hongyi Haozhe holds a black cloth sword in his hand and kills the "Black Crow Guard" of the Tiance Mansion with the broken sword of the Hao family. The memory of the blood and fire that burned the Hao family to ashes three years ago suddenly revives when the warm blood splashes on his cheeks - his father was killed by the sword, and his mother held her sister and threw herself into the sea of fire. All of this was due to the shocking conspiracy of the Tiance Mansion colluding with foreign forces.
Bearing the blood feud of destroying his family, he turned into a destitute beggar and wandered the streets during the day. At night, he studied the incomplete sword manual in the ruined temple cave and created his own weird sword skills. When he met the censor doctor who was unjustly imprisoned for impeaching Tiance Mansion on the streets of the capital, the gears of fate began to turn faster. From the mysterious disappearance in the prison of the Ministry of Justice to the life and death trust in the abandoned manor, a ledger recording treasonous transactions drew him into a deeper whirlpool. The old minister died suddenly and the evidence disappeared, but Hongyi Haozhe became more and more courageous in the battle. He secretly contacted the righteous men in the Jianghu, raided the secret stronghold of Tiance Mansion, and took the head of his enemy Xiang Shang directly in the light of swords.
However, the forces of Tiance Mansion are intricately entangled, with hidden stakings in the court and spies in the world like a spider web surrounding him. When he was about to present the evidence of his crime to the Holy One, interceptions and frame-ups followed one after another. At a critical moment, a mysterious woman appears with unknown clues, and in the process of revenge, he gradually uncovers a greater secret hidden in his life experience - it turns out that the destruction of the Hao family was the price of guarding a thousand-year treasure.
