Modern web novelist Li Dian transmigrates into the Great Qin dynasty as the son of Prime Minister Li Si, unexpectedly gaining the legacy of immortality. However, his predecessor committed a grave blunder, putting both him and his close friend Prince Fusu on the brink of historical tragedy. To save himself and his friend, Li Dian begins tutoring Fusu on how to plot a way out—completely unaware that their secret discussion is being overheard by Ying Zheng and Li Si. The plan to exile Fusu to Shangjun is halted. As toxic elixirs threaten the emperor's life and court factions clash, Li Dian takes charge of the Black Ice Platform in a crisis. The two young men navigate the treacherous currents of imperial power and political intrigue, striving to survive the turmoil of the era and overturn Great Qin's predetermined fate.