Zhang Yuan, an ordinary college student from a poor family, is a bit of a middle school student. The biggest twist in his life is which alley he can take to save two yuan in travel expenses after working part-time late at night. Until that night when he heard calls for help, he picked up a mop and rushed into a dark alley. As a result, he was stabbed through the heart by three mysterious men with black totems tattooed on their bodies.
After his death and arriving in the underworld, Zhang Yuan found that even the reincarnation was interrupted by someone - the nephew of the City God, who was arrogantly jumping in and turning a blind eye to the evil deeds. He went up to argue, but was thrown into the eighteenth level of hell to be tortured. Tongue pulling, oil pan, knife mountain, stone mill... All the ghosts are waiting to see him lose his soul. But he managed to carry it down, running over it layer by layer, until at the bottom of the 18th layer of the Saw Hell, a mutilated old man who had been chained for three thousand years pointed his finger between his eyebrows: "Go back, the world needs people like you."
When he opened his eyes again, Zhang Yuan was lying on the hospital bed. The scar on his chest was glowing with golden runes, and his palms could condense black flames. After his resurrection, he awakened the ability to control the "power of the underworld", accidentally saved a dying passerby, and was absorbed by the country's mysterious organization "Dragon Soul". Here, he met Mu Xixi, the daughter of the captain—a calm, intelligent 19-year-old girl who is used to talking with data. Under the training of Dragon Soul, Zhang Yuan gradually became stronger and got a glimpse of the whole world of supernatural beings: some are chivalrous and righteous, some are bullying the weak, and there are even foreign forces coveting the land of China.
