This is not a wish-fulfillment story, and the plot isn't mindless. There is no female lead, and the many twists make this a story to approach with care. Gao Che, from a parallel world, is ultimately defeated by the Lord of the Seven Saints. With his last remaining strength, he initiates a cycle of reincarnation and becomes the protagonist's System. The world is remade, and a version of Gao Che from a parallel world takes his place, reversing fate and turning the tables.
Parallel universes + transmigration + two protagonists merging + self-sacrifice to save the world + uncovering identities + hostile organizations + taking revenge by defeating enemies one by one.
World 1: The protagonist's original modern world, peaceful but on the verge of being infiltrated by plague spirits.
World 2: A parallel world ruled by plague spirits, where humanity struggles to survive.
