Introducing another group of antagonists, the Time Police.
These fight for the good of the timeline, making sure no paradoxes exist in this time, for when they do, the timeline will destabilize in its attempt at fixing itself.
They determine that Luna Yukari is a paradox after an incident occurs, making her inherit Luna Tsukimori's powers and memories.
They use the powerful Time Patrol cards that make their debut in Code of the Ruler.