Chu He, who accidentally transmigrated into a book, became a cannon-fodder supporting actress destined to die. Under the trickery of fate, she was abducted to the danger-fraught Miao Border Witchcraft Sect. Due to her special constitution, she was reduced to the ultimate mother Gu contended for by various factions, trapped in an underground cage, having to face poisonous insects and cruel struggles at every moment. At her wits' end, Chu He fabricated an engagement, using it as an amulet to seek the protection of the strongest medicine man, A Jiu. Day after day of companionship and getting along, the false lies slowly fermented into genuine feelings. A Jiu, a red-haired youth with an innocent yet paranoid disposition, developed a deep reliance on Chu He, willing to fight to the death for her, and even awakened the Gu King's power in a desperate situation, breaking through layers of shackles to keep her safe.