Hidden for Three Years, Invincible Upon Release

Mo Hai, a ruthless killer, lived in seclusion in a dead prison for three years to keep his master's promise. Upon his release, he protects Qin Lan, the president of Fenghua Group who holds a secret of eternal life, while investigating his master's death and repaying his trillion-dollar gambling debt. Using overwhelming power, Mo Hai thwarts assassinations, uncovers the traitor, and unites various factions, falling in love with Qin Lan's tsundere and sharp-tongued nature. During this time, he reorganizes the Ten Hells to fight the Changsheng Pavilion, which covets the secret of immortality, revealing the truth behind his master's murder and clearing all his debts. In the end, he destroys the secret art of immortality, safeguards Qin Lan, becomes a core figure at Fenghua Group, and finally builds a family with her, delivering an urban legend of a hero's return filled with love and hatred.