After being transported back to the 1970s, Shen Qingyi finds herself stranded in a remote mountain area, where she takes on the role of a guardian. On her first night, a suspicious individual tries to break into her quarters, but she fights back fiercely. Word of her bravery spreads quickly through the farm, and she soon earns a reputation as someone not to be trifled with. Thanks to a mysterious sign-in system that provides her with essential items—cotton gloves, coarse salt, matches, and a multi-functional military knife—Shen Qingyi manages to survive and even thrive in the harsh conditions. She cultivates medicinal herbs, raises bees, and uncovers spies, steadily defying expectations and becoming a standout figure in the community. Meanwhile, Chen Shijie, who has been living off money sent by Shen Qingyi's family, grows increasingly wary of her presence and begins plotting against her. His schemes, however, backfire and land him in prison, where he pleads for her forgiveness. Shen Qingyi remains resolute, insisting that forgiveness is for the merciful, while her duty is to see him held accountable.