Keita's ordinary life shatters the moment Kuro crashes into it. She's a member of an ancient order tasked with maintaining equilibrium between parallel versions of humanity, each tied to an invisible force called Terra that determines everything from fortune to lifespan. When Kuro discovers that Keita shares a connection to Terra that shouldn't exist, she's forced to stay by his side, caught between her duty to preserve balance and the growing realization that his existence threatens the entire system. What unfolds is a high-octane battle spanning hidden dimensions and secret societies. Keita stumbles deeper into a world where supernatural protectors move in shadows, where his luck could shift the fate of thousands, and where the rules governing reality itself become negotiable. Kuro must confront whether following orders means sacrificing the person she's sworn to protect. This is action wrapped in mythology, where each fight carries weight beyond the immediate threat. The constant collision between Keita's human vulnerability and Kuro's otherworldly obligations creates genuine tension, pulling you through a narrative that treats its supernatural mechanics seriously while keeping your focus locked on two characters learning to trust each other against impossible odds.