A Kiss for the Withering Moon [Quick Transmigration]

As a top agent for the Time and Space Bureau, Susu's job is to save the "supporting female characters" consumed by their stories.

Every small world is transformed in her wake:

Girls whose fates were rewritten grow spines of steel, formatted dolls develop beating hearts, and long-dimmed pearls finally shine across the land.

Then one day, the main System issues a red alert:

The consciousnesses of the supporting female characters who should have faded away are awakening across every timeline at once.