Jiang Luyi accidentally crosses into a book, originally wanting to experience the heroine's script, but instead relegated to the vicious supporting female character Su Ruan who is destined to die at the start. To escape the fate of a tragic death, she desperately tries to avoid the original book's male and female leads, Shen Zhaoye and Yu Qinghe, yet through a twist of fate, she provokes and saves the crazy villain Yan Chen. Yan Chen holds her hostage with the Three-Corpse Pill, forcing the two to bind together and travel side by side. Amidst evading assassination and grappling with power conspiracies, she relies on her wit to survive, and also develops a complexly entangled bond with the villain.