Urban elite Lin Che fell to rock bottom overnight: on the day she lost her job, her wife handed her a divorce agreement. When he was desperate, he accidentally traveled through time and became the humblest concubine prince of the fictional dynasty "Dayin", and was immediately sent to the enemy country "Beiyan" as a hostage. In a foreign country full of dangers, he relied on the modern military thinking and cartography talent deep in his soul to be reborn in a desperate situation. From reversing a border battle of life and death, to capturing the love of the enemy's pearl princess; from taking advantage of the opportunity to return to the whirlpool of the mother country's court, to using iron fist and wisdom to cleanse the traitors and win the hearts of the people. This thorny road leading to the supreme position is also Lin Che's journey to rediscover her self-worth and create a legend. In the end, he stood at the top of power, with thousands of miles of mountains and rivers behind him, and a group of "comrades" who understood and supported his ambition.
