Li An'an travels through three thousand worlds, rewriting the destinies of wronged hosts. She carries the lingering obsessions of others and cuts through injustice like a blade. Lin Xi, meanwhile, is simply someone who wants to experience life, and their paths unexpectedly cross in every world. He witnesses her acts of redemption, while she steps into his journey. Across countless worlds, a mission-driven tasker and a traveler who enjoys the journey keep meeting at the twists of fate.