Liang Mengmeng, the sacred maiden of the Miao village, bears a vital mission. To become the next clan chief, she must conceive the successor heir within one year. She leaves the Miao village carrying the Derivative Insect. While searching for her fated partner, all sorts of mishaps keep happening. Due to an accident, the Derivative Insect crawls into Gu Jingsheng’s body. From then on, Liang Mengmeng and Gu Jingsheng embark on a series of hilarious and absurd episodes. They are even mistaken for lewd people because of misunderstandings.
Gu Jingsheng’s life is put in grave danger because of the Derivative Insect. To save him, Liang Mengmeng has no choice but to give away her Bond‑Heart Insect. Nevertheless, she falls victim to malicious schemes and obstructions from Li Anna and others. Amid these twists and turns, Liang Mengmeng and Gu Jingsheng join forces to confront the conspiracies of Jin Weng and his accomplices, and their feelings for each other gradually deepen.
Later, Liang Mengmeng suffers repeated persecution at the hands of Li Anna and is left on the brink of death, while Gu Jingsheng also lands in peril. But at the critical moment, Liang Mengmeng successfully conceives. The Derivative Insect and the Bond‑Heart Insect return to her body. This not only saves her life but also grants her power to fight her enemies. In the end, Gu Jingsheng decides to go back to the Miao village with Liang Mengmeng. Together they safeguard their love and family, and start a brand‑new life.
