A modern medical genius, upon opening her eyes, transmigrated into a cannon-fodder female lead, Sang Ruo, the daughter of Yaowang Valley, who was abused to death in a short drama. Ruined and left homeless by the scumbag marquis Pei Zhihan, she even became the medicinal catalyst for his white moonlight. Reborn once again, she acts obedient and weak, plotting step by step. She personally presents the tampered Shennong Secret Codex, turning life-saving elixirs into fatal poisons. Medicine and poison are one family; she endures and bides her time, waiting only to claim back the past blood debts with interest. This time, she will make the ungrateful man return his life with his own hands.