A young man accidentally sent back to the medieval era forms an unlikely alliance with a kind-hearted woman to repair a time machine and return home, only to discover she is his distant ancestor, raising questions about the impact of their alliance on the future.
Protagonist: A kind-hearted and intelligent medieval woman who sympathizes with the protagonist's situation and wants to help him; Antagonist: A suspicious and ruthless royal advisor who views the protagonist as a dangerous outsider and seeks to expose and eliminate him.
The protagonist and the medieval woman form an unlikely alliance as they work together to find a way for the young man to return to his own time, facing numerous obstacles and challenges along the way.
In the end, the protagonist and the medieval woman successfully repair the time machine and the young man is able to return to his own time. The royal advisor's plans are foiled, and the protagonist and the woman part ways, both forever changed by their unlikely alliance.
Twist: As the protagonist returns to his own time, he realizes that the woman he befriended in the medieval era is actually a distant ancestor, leading him to question the impact of their alliance on the future.