After three years of seclusion, he was invincible upon his release from prison.

Mo Hai, a legendary figure among men, lived in seclusion in a death row prison for three years, as promised to his master. Upon his release, to investigate his master's death and repay a trillion-dollar gambling debt, he took on the role of a bodyguard protecting Qin Lan, the president of the Fenghua Group, who possessed the secret of immortality genes. With overwhelming strength, he thwarted assassinations, uncovered the mole, and won over various factions. He and the arrogant and sharp-tongued Qin Lan gradually developed feelings for each other, starting as a bickering couple. During this time, Mo Hai reorganized the Ten Kings of Hell, fought against the Longevity Pavilion coveting the secret of immortality, revealed the truth behind his master's murder, and paid off all his debts. Ultimately, he destroyed the secret of immortality, protected Qin Lan, became a core member of the Fenghua Group, and finally married her, creating a legendary urban tale of a powerful figure's return and intertwined love and hate.