Zhang Chi, who is a professional racer, suffers a horrible accident at a race and gets seriously injured, leading to his waking up in the 21-year-old body of Lin Zhendong. He tries everything possible to prevent his 24-year-old self from repeating the same mistakes and helps Lin become a professional racer.

The queen of the human tribe gave birth to twin girls. Respected by the entire tribe, the older sister Qing Kui, who is gentle and kind, is betrothed to the heavenly prince. The younger sister, Ye Tan, smart and cunning, shunned by her own people, is betrothed to the demon prince. Due to a mix-up, the two sisters are married off to the wrong husbands. It paves the way for two beautiful romances and also ignites a conspiracy that shakes the four realms.

The rise of the Qin state in the Warring States period during the reign of Duke Xiao of Qin.