In his past life, Lin Ye was a top player in a holographic online game. Betrayed by guild heavyweight Wang Teng, his equipment and fortuitous encounters were stolen, and his younger sister tragically suffered because of it. Filled with remorse, he is reborn to the eve of the game's launch. Selling off his assets, he chooses the thief class, relying on prophetic memories to seize mythical treasure chests, rapidly farm bosses, and befriend various experts. While fighting against the financially powerful Wang Teng to protect his sister in reality, he simultaneously pushes for a hidden class advancement and opens the high-difficulty challenge of the Dark Night Monarch.