A modern man with high IQ travels back in time to become a peasant girl from an imaginary historical era.
There is no space, no golden fingers, no special nobles, no love between children, no coincidences, and no special settings.
He is knowledgeable, intelligent, responsible, sentimental, broad-minded, and grounded, and of course he is also sinister and even ruthless.
From a small farmhouse to a frontier thousands of miles away; from a porridge and a meal to a lecture in a temple; from a village fight to a national war. The author intends to show every bit of a time traveler's thinking, behavior, ideals, and reality in a specific era.
Intention: truth