Transmigrated to the Beast World, Yu Manman awakens with a Villain Reform System integrated into her mind. According to its assessment, she's a jealous, deceptive character destined to harm the female protagonist through framing and betrayal, dragging her entire family to ruin. The system demands reformation through carefully designed tasks to salvage her morality. There's a critical problem: Yu Manman is five years old. The system arrived eighteen years ahead of schedule. Her current state—a small, innocent child—makes the reformation tasks absurdly inappropriate. She cannot rebuild parental relationships when she barely comprehends language, cannot reconcile Beast Husbands when she depends entirely on caretakers. The gap between prediction and reality has created an impossible situation. Doubtful of the system's accuracy, Yu Manman watches as circumstances unfold differently than programmed. The character labeled as the villain displays genuine innocence and moral integrity. Meanwhile, the supposedly virtuous female protagonist reveals increasingly sinister motives and manipulative schemes that mirror actual villainy. The system's fundamental flaw becomes undeniable: it identified the wrong character entirely. It selected a five-year-old innocent to reform into a villain, completely overlooking the actual antagonist. How a System Arrival could miscalculate so dramatically—arriving early yet still identifying the wrong target—remains its greatest unsolved mystery.