She woke up in the vast wilderness, surrounded by the roar of the primitive jungle and unknown dangers, and ignorantly merged into the small tribe on the verge of collapse. There are no exquisite houses here, only simple stone caves; there is no sufficient food, only precarious hunting and gathering; there is no stable life, only the invasion of wind, frost, rain, snow and the covetousness of neighbors. With a hint of modern people's survival wisdom, Ahe started from identifying wild vegetables and drilling wood to make fire, and gradually explored how to take root in ancient times. She taught the tribesmen to store food and build stable homes, reconcile conflicts in the tribe with delicate thoughts, and impress the people around her with warm kindness. In this wild land, she not only had to contend with the harsh natural environment, but also had to deal with the complexity of people's hearts. She also gained sincere friendship and deep love through getting along day and night. From an inconspicuous outsider in the tribe to the core of everyone's dependence, Ahe used tenacity and gentleness to ignite an everlasting warmth in the world on the ancient earth.