King Qingtian, Fang Beiliao, flees back to his hometown of Bingcheng to escape the ruler's arranged marriage. There, he encounters Xiao Ningxue, a female CEO developing a core project. To protect Xiao Ningxue after she is targeted for assassination for refusing to cooperate with Dongying, Fang Beiliao becomes her personal bodyguard. He discovers that his own Fang family has secretly colluded with Dongying's Sakura Group for profit. Determined to expose the traitor within and destroy the Sakura Group, he becomes entangled in a struggle involving the Fang family, the theft of the core project, and relentless attacks from hostile forces. Along the way, he develops mutual feelings for Xiao Ningxue and reunites with Princess Tu Ye of Fannan, who has also fled an arranged marriage. As the conflicts intensify, Fang Beiliao finally reveals his identity as King Qingtian at the royal inauguration ceremony.