Transmigration as Law abiding system

Riva, an ordinary office worker, is tragically killed by a delinquent punk trying to rob her. After her death, her soul is collected by the Transmigration Bureau, which recruits her to become a "player" (or host) tasked with traveling through novel worlds and completing missions. However, a rogue system—one that secretly longs to be a player itself—hijacks the process and swaps their identities. In a bizarre twist, Riva becomes the first person in Bureau history to transmigrate not as a host, but as a law-abiding system. Now stripped of a physical body, she is assigned to manage the "corruption value" of various hosts across different story worlds. World 1 :- System × Vicious stepsister of a dog blood drama female lead World 2 :- System × Biased Grandmother of a period Marry Sue novel World 3 :- System × First love of Female lead's abusive and dumb brother World 4:- System ×Vicious brother of the real rich daughter swapped at birth World 5 :- System × Rogue system who Transmigrated in the Male lead of Harem Novel