System 168, a high-functioning entity from a advanced technological civilization, is penalized for outstanding performance by being demoted and reincarnated as a baby in a low-level world. Upon materialization, the system discovers that 99% of its functions are disabled, leaving it with only 2 units of energy and no bound host. It finds itself in the body of an orphan girl in Tongshu Village, located in the drought-stricken Black Mountain area of Great Zhou. The world is in chaos following the Nine Princes' Rebellion, and a century-long drought has pushed the local population to the brink of starvation, with cannibalism becoming a grim reality.
The infant system is rescued by Qin Ying, a fourteen-year-old girl who is the daughter of a deceased imperial scholar, and Aunt Zhao, a widowed neighbor. Qin Ying has endured immense hardship, caring for her sick in-laws and surviving the collapse of her family structure. She takes in the orphan, naming her An An, meaning peace. An An, retaining the consciousness of System 168, quickly realizes that her energy replenishes through the positive emotional interactions with her caregivers, particularly through love and gratitude. She activates her limited "Heavenly Eye" scan and "Koi Luck" abilities, which she uses to subtly influence events in favor of her new family.
The core conflict revolvesizes around survival in a hostile environment. An An uses her koi luck to guide Qin Ying and Zhao Hu to discover a hidden water source deep in the mountains. This discovery transforms the village's fortunes, allowing them to dig wells and plant crops. An An further utilizes her system capabilities to locate hidden grain stores in the village head's cellar and magically generate fertile land with abundant crops in a secluded mountain hollow. These actions provide the village with the resources needed to survive the famine.
A key turning point occurs when Zhou Yu, a young official and nephew of the Empress, arrives in the region to investigate the drought. An An identifies him as a high-value source of energy due to his noble status and kind nature. She actively seeks his attention, attempting to bond with him to gain more energy, while Qin Ying remains wary of outsiders. The villagers, led by the elder Uncle Chen Jiu, begin to organize around the new water source and grain supplies, shifting from desperate scavengers to a cooperative community.
As the story progresses, An An's energy levels rise, allowing her to activate more features, such as terrain mapping and enhanced luck distribution. She helps the Zhao family hide their secret fertile land while publicly sharing their discovered resources with the village to maintain social harmony and avoid envy. The narrative follows the gradual stabilization of Tongshu Village, as crops grow and the threat of starvation recedes. An An continues to navigate her dual existence as a baby and a system, balancing her need for energy with her growing attachment to the family that raised her, while keeping her true nature hidden from the suspicious official Zhou Yu and the rest of the world.
