Seventy-Year-Old Boundary Monument Expert, Married to the Company Commander with the Army

(70S Military Marriage + Non-Human Female Protagonist + Border Defense Infrastructure + Marriage First, Love Later + Reading Voices + System Seizing Luck + Group Image Growth + Sweet Pet Slap in the Face) Jiang Suining, a boundary marker who had been sleeping for a hundred years, opened his eyes and became a poor little person who was impostered in the 1970s and was about to be sent away for marriage. She can hear the echoes left by mountains, rivers and old things, but she must have a legal identity to stay in the world. So, she held her household registration book and blocked the border guard company commander Lu Changchuan who had just finished his mission. "Comrade Lu, are you getting married? I can find water, know the way, catch bad guys, and I'm very easy to take care of." Lu Changchuan looked at the little girl in front of him who collapsed as soon as the wind blew, and he wanted to refuse sternly. The next second, she kicked off the wooden stake as thick as a bowl. Lu Changchuan: "... We will get married today." After joining the army in the northwest, others thought she was squeamish, but she listened to the echo of underground veins, causing clear springs to emerge from the barren slopes; when the enemy's agents were well hidden, she touched an old button and followed the clues to uncover the entire hidden line; when the mountains were closed due to snowstorms, she led the patrol through Death Valley, where no one dared to enter. Only then did everyone in the Family Court realize that the wife Captain Lu had married was not a daughter-in-law. She was clearly the treasure of the border defense regiment. But a reborn girl with a longevity mall suddenly appeared.