Good Husband, Be Obedient

"In ancient times, time travel, the heroine comes to the end of the world, and she practices martial arts, and the hero is paralyzed and cold-faced. In the early stage, the girl chases the boy, but in the later stage, it reverses, and it's a bit sadistic..." Lin Mengwan, an old lady who has experienced the apocalypse, accidentally traveled through ancient times. She is still a small peasant girl, stumbling across time and space with a man. After the man finishes his work, he pats his butt and leaves, leaving only one sentence: I will be responsible, and he disappears. Then, some interesting things happened on the way to escape the famine in the disaster year. He accepted a prince as his apprentice, grew corn and was given the title of county master by the current emperor, and even gave birth to a minor facial paralysis. Three years later, as the prince's apprentice returns to Beijing, what kind of changes will be caused? The introduction is too weak, please move to the main text. Thanks!