She is the top forensic doctor of the 21st century. Once she traveled through time and became the abandoned regent princess, she faced the desperate situation of death from poison at the beginning. He is a cold-blooded regent who holds great power in the government and the public. He is poisoned by a strange poison and his life hangs by a thread.
"Want to live? Give me your medical skills in exchange."
From then on, she became his only antidote, and he became her strongest supporter.
Palace fight? She pricked her with a needle and made the imperial concubine kneel down and beg for mercy. Trickery? She revealed a secret and helped him sweep through thousands of armies.
But when the truth was revealed, she discovered that this encounter was no accident—
"You save my life, and I will give you my life back."
"Zhang Yan, if the world becomes your enemy, I will poison the world."
The powerful team up, interweaving sweetness and cruelty, and see how she uses poison as a blade and medicine as a shield to become king alongside him in troubled times.
