When Dahuang Immortal came down to earth to experience the calamity of love, he and Yun Ji played chess to meet friends, which destroyed the six roots of purity. After returning to heaven, he could not realize the supreme Bodhi. The chess game and fate of the two people are in a stalemate, so they bet on the calamity of the birth of the black and white sons: if the black son wins the world, the immortal will give up ten thousand years of hard training and travel with Yunji across the sea; if the white son wins the country, Yunji will abandon the ten thousand miles of freedom and practice in the mountains with the immortal. In the human world, Tianheng Kingdom and Xia Yang Kingdom were at war for hundreds of years, until the twin stars came to the world twenty years ago. Xie Yuan, the crown prince of Tianheng, was born with a white jade in his head and had outstanding chess skills; Luo'er, an orphan in the mountains, was born with a black jade in his head; Ye Luzi was born and won chess players from fourteen states and was selected into the Tianjia Chess Academy. The two got connected because of chess, cherished each other, and gradually fell in love. An important minister of the court died mysteriously, and a chess game was left at the scene of his death. Xie Yuanli went against all opinions and appointed Luo'er to join forces with him to investigate the case, but found out that the deceased had played chess with a woman before his death, and that woman was Luo'er. The battle for the right to inherit the throne, the undercurrent of the previous dynasty, the case within the case, and the many obstacles... As Luo'er's life experience is revealed, the fate of the past life comes to the surface, and the two are separated by a fateful bet, family and country grievances, and government and opposition conspiracies. They used to play chess together, but now they are entangled in love and hate. They know each other but also doubt each other, fall in love and hurt each other. In the final mortal chess battle, black and white compete, who is in charge?
