Future Lighthouse Starport Communications Chief Engineer Qin Zhao died in the line of duty to reconnect the main network, but the moment she opened her eyes, she became Liu Ximei, the adoptive daughter in a mountain village in Lingnan in 1983. Fortunately, AI partner Tongshao and the portable cabin followed along. Pretending to be timid to enter the checkpoint and save hostages, the regental commander who arrived leading troops turned out to be her biological father lost for ten years! From then on, while being fancied by the cold-faced reconnaissance company commander Han Zheng, she built frequency-hopping radios, handheld phones, and satellites one by one, overturning nobles, moles, and overseas intelligence networks one by one. Carrying everyone's life in her past life, in this life she just wanted to lie flat, but who made her the chief engineer?