For countless centuries, rumors have persisted about mysterious group deaths—instances where clusters of people perish without any known cause. These occurrences are not limited to the past but extend into the future, and not just within our world but in others yet undiscovered. Some speculate that these groups are reincarnated into different realities, transported into fantasies as part of an unknown cycle. But what lies behind these unexplained events? If those who died were truly reborn elsewhere, is this new existence a gift—or something far more sinister?