She has a master's degree in communications engineering and wakes up dressed as the daughter of a criminal who was demoted to a border post station.
He was a general in Zhenbei. He won battles, but due to poor communications, his victory reports were repeatedly intercepted and killed.
When communication in ancient times still relied on fast horses at inns, and the eight hundred-mile express was the limit - she used carrier pigeon coding, beacon binary, and semaphore lights to turn military information thousands of miles away into signals at the fingertips.
When his courier disappeared for the third time, a pigeon with a secret message was delivered from the inn.
He asked: Who trained him?
The female postman raised her head: Me.
