Please don't span the globe!

"I'm done with romance!" After a breakup, high school girl Chisei stumbles into the hideout of a patrol unit that cracks down on illegal immigrants from another world. Through a twist of fate, she becomes their collaborator. Her mission: to constantly make up lies so that the magic and cheats from the other world don't get exposed in modern times—a job called "covering the gaps"! As she conceals incidents day after day alongside her blue-eyed partner Allen, Chisei discovers a "rewritten past" that had been hidden between them. However, romance between someone from another world and someone from modern times is the greatest taboo that breaks the laws of the world—a bug. "Don't meddle in our world! Don't get in our way!" Shaking off their former allies who have become their pursuers, the two escape to the edge of dimensions.