Yang Lei, nearing middle age, unexpectedly transmigrates to a strange world and awakens an Unnatural Death System. The system requires him to die in an unnatural way in each world, without suicide, revealing his death, or dying of old age. He must die through the hands of others, who must remain unaware. Each death allows him to transmigrate to the next world to continue the mission, a total of 50 deaths required. With each death, the system increases his merit and charm, making subsequent deaths increasingly difficult. In each world, he faces time constraints; failure to complete the mission on time will lead to racial crises and other disasters. Furthermore, his concealment of mission information often leads to misunderstandings and trust issues with different factions, forcing him to choose sides in conflicting alliances. However, to return to Earth, gain supreme power, and bring back the girl he desires in each world, he struggles to balance upholding his principles with completing his missions. Through his resilience and ever-growing abilities, he overcomes each death challenge.