Cheng Hao, a history student at a university in the 21st century, unexpectedly transmigrates to the transition between the Sui and Tang dynasties and becomes Cheng Yaojin of Wagang Stronghold. Using his modern knowledge and understanding of history, Cheng Hao quickly rises to prominence amid the chaos. But he soon discovers that history’s course is not set in stone, and that the power struggles at the end of the Sui are far more complicated and ruthless than the history books describe. Cheng Hao tries to use his foresight to play all sides, only to become entangled in an even greater conspiracy. It turns out that the era he has entered is not real history, but a chaotic game of chess controlled by a mysterious force. Through repeated brushes with death, Cheng Hao gradually uncovers a world-shaking secret, and his identity as “Cheng Yaojin” is the key to unlocking it. Determined to escape his fate as a pawn, Cheng Hao defies destiny. He joins forces with various factions and battles the mastermind behind it all. In the end, his intelligence and courage break the chains of fate, reveal the truth of history, and help him find a way back to his original world. But an even more difficult choice lies before him.