During the rainy season in Jiangnan, Li Jingyan accidentally touched a family heirloom jade pendant while her family was paying respects to their ancestors at their old home. She activated a mysterious portable space and learned that in three months, her entire family would transmigrate to the Great Xuan Dynasty. After transmigrating, the Li family inhabited the bodies of ten members of the same clan who had died after mistakenly eating poisonous mushrooms. Their portable space merged with the original owner's space and upgraded. Li Jingyan used water from a spirit spring to save her family, but drew the clan leader's covetous attention. She cleverly used clues from the space and an ancestral prophecy to intimidate everyone, establishing a foothold in this new world.
The Li family used the supplies in their space to help villagers suffering from a severe drought. But as the disaster worsened, they were forced to flee, facing life-and-death trials along the way, including sandstorms and bandit raids. After reaching the capital, they applied modern business ideas to establish distinctive ventures such as the Hundred Flavors House and Beauty Workshop, and drove technological advances in papermaking and printing, making their mark in business and culture. In the process, Li Jingyan and Qin Xiao, heir to the Marquis of Ningyuan, grew close while preparing to establish an academy together and dealing with business crises. Despite the Old Marquis Qin's opposition, they stood firm in their love.
Meanwhile, the other members of the Li family each found love and success in their own pursuits. Then a warning from the space revealed that a malevolent remnant soul was about to break free from its seal. To save the world, the Li family embarked on an adventure to find three keys: Moon, Star, and Celestial, facing off against the formidable forces of the Nine Nether Pavilion. Once the crisis was over, six couples married, and the Li family began a plan to nurture its fourth generation. Years later, elderly Li Jingyan passed the family's secrets and mission on to her son, Qin Anyi, ensuring their legacy would endure.