Riyun, the youngest son of the prestigious Sermin Family, faced tragedy after his father and brothers disappeared. Captured by the Phaton Family, he met a grim end through unimaginable torture. However, he awoke in Adeon, a treacherous battlefield where he became the powerful Ghost King, mastering various classes. Though defeated, he returned to his twelve-year-old self, still possessing a player's experience. Determined to stop his family's downfall and reclaim what was lost, Riyun seeks bloody revenge against the Phaton Family, the very house that brought down the Sermins and murdered him.