He was once the "God of Death" Su Chen, who frightened his enemies. However, he was charged with treason for avenging his comrades and was thrown into the seventh level prison known as "Purgatory on Earth". Here, gangsters, retired murder weapons, and even traitors wanted by the military are imprisoned. Everyone thought this was punishment, but they didn't know it was a top secret mission - to rectify the prison darknet and uncover military leakers. During three years in prison, Su Chen conquered the thugs with his fists, used golden needles to save prisoners on death row, and turned the prison into his own training ground.
After he was released from prison, he was publicly humiliated by his fiancée, kicked out of his family, and had to face misunderstandings from his comrade's widow. However, those who mocked him as a "re-education prisoner" did not know that his godfather in the underground world offered him an olive branch, and military bosses secretly provided resources. His hands could not only tear apart the enemy with battlefield fighting skills, but also use lost acupuncture techniques to bring the dead back to life. When the remnants of the "Blood Blade" mercenary group reappear, and when the Gu Group's conspiracy comes to light, Su Chen will uncover the truth from three years ago and make the entire city pay the price for its contempt!
