On the eve of his retirement, the top assassin Chen Wu was stabbed in the back by the organization, codenamed "Twilight of the Gods". When he was about to die, he merged with the mysterious ancient jade and awakened the "God-killing System", but he was shocked to realize that the so-called tasks were all sacrificial rituals. In order to find the truth and take revenge, he returned to his old business, but he didn't know that every step he took was stepping into a higher-dimensional chess game - and the chess player was himself.
